Scrotal PainAPPROACH

RENAL AND URINARY · 19 SECTIONS

⚲

522 items

☷ Legend

⚲

Resuscitation and Universal Approaches9▾

Chest and Cardiovascular12▾

Respiratory11▾

Abdominal and Gastrointestinal24▾

Renal and Urinary7▾

Oliguria And Anuria Catheter Related Urinary Complaints Dialysis Patient Presentations Flank Pain And Renal Colic Concern Urinary Retention Hematuria Scrotal Pain

Neurologic11▾

Back and Neck8▾

Women's Health, Pregnancy, and GU11▾

Infectious Disease and Fever Syndromes11▾

Allergy and Dermatology7▾

Musculoskeletal and Extremities14▾

Trauma and Wounds14▾

ENT, Eye, Dental10▾

Endocrine, Metabolic, and Abnormal Labs9▾

Toxicology and Behavioral14▾

Pediatrics16▾

Environmental and Exposure4▾

01History/hx80

HPI overview

›Core symptom characterization

›Acute onset minutes to hours

›Subacute onset hours to days

›Chronic or recurrent pattern weeks to months

›Laterality

›Right

›Left

›Bilateral

›Baseline testicular position changes

›High riding testis history

›Horizontal lie history

OPQRST

›Onset

›Sudden onset

›Gradual onset

›Time from onset to presentation

›Provocation and palliation

›Triggered by exertion

›Triggered by sexual activity

›Triggered by trauma

›Worse with movement or walking

›Relief with scrotal support

›Quality

›Severe sharp pain

›Dull ache

›Burning or dysuria associated

›Pain out of proportion to exam

›Region and radiation

›Lower abdomen or suprapubic radiation

›Inguinal canal radiation

›Flank radiation

›Perineal or rectal radiation

›Severity

›Rapid escalation to severe pain

›Mild to moderate persistent pain

›Pain limiting ambulation

›Timing

›Constant

›Intermittent

›Recurrent self resolving episodes

Associated symptoms

›Genitourinary

›Dysuria

›Frequency

›Urgency

›Hematuria

›Urethral discharge

›Urinary retention

›Systemic

›Fever

›Rigors

›Malaise

›Nausea

›Vomiting

›Dermatologic and soft tissue

›Scrotal swelling

›Scrotal erythema

›Skin bullae

›Skin discoloration

›Foul odor

Sexual and exposure history

›Sexual exposures

›New partner in past 60 days

›Condom use pattern

›Insertive anal intercourse exposure

›STI risk and prior infections

›Prior gonorrhea

›Prior chlamydia

›Prior HIV diagnosis

›Recent GU procedures

›Catheterization

›Cystoscopy

›Vasectomy

›Ureteroscopy

Pediatric and adolescent specific

›Age specific torsion considerations

›Neonate torsion concern

›Pubertal torsion peak concern

›Activity and exertion triggers

›Sports participation

›Recent running or jumping

›Caregiver timeline reliability

›Exact last known well time

›Intermittent pain episodes

02Alarm Features/alarm39

Time critical diagnoses triggers

›Immediate urology activation triggers

›Sudden severe unilateral scrotal pain

›High riding testis

›Horizontal lie

›Absent cremasteric reflex

›Nausea or vomiting with scrotal pain

›Necrotizing infection triggers

›Pain out of proportion

›Rapidly progressive swelling or erythema

›Crepitus

›Bullae

›Skin necrosis

›Toxic appearance

›Incarceration and ischemia triggers

›Irreducible inguinal or scrotal mass

›Overlying skin changes

›Vomiting or obstipation

›Peritonitis

Vital sign danger thresholds

›High risk physiology

›Hypotension

›Systolic blood pressure less than 90 mmHg

›MAP less than 65 mmHg

›Tachycardia

›Heart rate 130 or higher

›Persistent tachycardia after analgesia

›Fever

›Temperature 38.5 C or higher

›Hypothermia in suspected sepsis

›Respiratory compromise

›Respiratory rate 30 or higher

›Oxygen saturation less than 92 percent on room air

High risk exam findings

›Scrotal and perineal exam red flags

›Testis tenderness with abnormal lie

›Diffuse scrotal wall edema with crepitus

›Perineal tenderness

›Rectal tenderness with systemic toxicity

›Abdominal and vascular red flags

›Pulsatile abdominal mass

›Severe flank pain with hematuria and hypotension

03Medications/meds32

Medication reconciliation

›Current medication classes affecting evaluation

›Anticoagulants

›Antiplatelets

›Immunosuppressants

›SGLT2 inhibitors

›Chronic opioids

›Recent antibiotics

›Beta lactams

›Fluoroquinolones

›Doxycycline or macrolides

Medication related risks

›Bleeding and hematoma risk

›Warfarin

›DOACs

›Heparin products

›Immunocompromise and severe infection risk

›Chronic steroids

›Biologics

›Chemotherapy

Analgesia and antimicrobial examples

›Analgesia options

›Acetaminophen PO 1000 mg

›Ibuprofen PO 600 mg

›Ketorolac IV 15 mg

›Hydromorphone IV 0.5 mg

›Epididymitis likely STI coverage

›Ceftriaxone IM 500 mg single dose

›Doxycycline PO 100 mg twice daily for 7 days

›Epididymitis likely enteric coverage

›Levofloxacin PO 500 mg daily for 10 days

›Fluoroquinolone tendon risk

›Local protocol dependent

›Antibiotic selection based on resistance patterns

›Renal dosing adjustments when reduced GFR

04Diet/diet14

Recent intake and hydration

›Intake pattern

›Poor oral intake

›Vomiting limiting intake

›Normal intake

›Hydration indicators

›Reduced urine output

›Dark urine

›Orthostatic symptoms

Exposures relevant to differential

›Alcohol and substances

›Alcohol binges

›Cocaine or stimulant use

›Caffeine and energy drinks

›High caffeine use

›Recent increase in use

05Review of Systems/ros24

Constitutional and infectious

›Systemic symptoms

›Fever

›Chills

›Night sweats

›Weight loss

Genitourinary

›Urinary tract symptoms

›Dysuria

›Frequency

›Urgency

›Hematuria

›Flank pain

›Reproductive symptoms

›Urethral discharge

›Testicular swelling

›Pain with ejaculation

›Scrotal skin lesions

GI and vascular

›Abdominal symptoms

›Nausea

›Vomiting

›Constipation

›Diarrhea

›Vascular symptoms

›Syncope

›Lightheadedness

06Collateral History and Family History/chafh11

Collateral source

›Source and reliability

›Patient historian reliability

›Caregiver historian reliability

›EMS report

Family history

›Relevant inherited conditions

›Testicular cancer family history

›Bleeding disorders family history

›Sickle cell disease family history

›Early cardiovascular disease history

›Myocardial infarction before age 55 in first degree relative

›Myocardial infarction before age 65 in first degree relative

07Risk Factors/rf20

Torsion and anatomic risks

›Torsion risk factors

›Prior intermittent torsion episodes

›Undescended testis history

›Bell clapper deformity history

Infection and necrotizing infection risks

›Epididymo orchitis risk factors

›STI exposure

›Recent urinary instrumentation

›Bladder outlet obstruction

›Fournier gangrene risk factors

›Diabetes mellitus (E11.9)

›Obesity (E66.9)

›Alcohol use disorder (F10.20)

›Immunosuppression

Trauma and bleeding risks

›Trauma risks

›Contact sports exposure

›Straddle injury

›Sexual trauma

›Bleeding risks

›Therapeutic anticoagulation

›Thrombocytopenia history

08Differential Diagnosis/ddx53

Life threatening

›Cannot miss

›Testicular torsion (N44)

›Sudden onset severe unilateral pain

›High riding testis or horizontal lie

›Absent cremasteric reflex

›Fournier gangrene necrotizing fasciitis (M72.6)

›Pain out of proportion

›Systemic toxicity

›Crepitus or bullae

›Incarcerated or strangulated inguinal hernia (K40.3)

›Irreducible groin mass

›Bowel obstruction symptoms

›Testicular rupture after trauma

›Significant blunt trauma

›Expanding hematoma

›Sepsis from epididymo orchitis (A41.9)

›Fever with hypotension

›Elevated lactate

Common

›High frequency etiologies

›Epididymitis or epididymo orchitis (N45)

›Gradual onset

›Dysuria or discharge

›Torsion of appendix testis

›Localized superior pole tenderness

›Blue dot sign

›Hydrocele (N43)

›Painless swelling

›Fluctuant mass

›Varicocele (I86.1)

›Dull ache worse with standing

›Improves with supine position

›Acute scrotal cellulitis

›Skin predominant tenderness

›No testicular focal tenderness

Less common and mimics

›Other considerations

›Renal colic referred pain (N20.0)

›Flank pain

›Hematuria

›Acute prostatitis (N41.0)

›Perineal pain

›Fever

›Testicular tumor (C62)

›Mass

›Subacute heaviness

›Segmental testicular infarction

›Focal tenderness

›Mimics tumor on imaging

›Vasculitis including Henoch Schonlein purpura

›Purpura

›Abdominal pain

›Sickle cell related priapism associated pain

›Sickle cell disease (D57.1)

›Genitourinary pain crisis

09Past Medical History/pmh16

Prior genitourinary history

›Relevant prior conditions

›Prior torsion or orchiopexy

›Prior epididymitis episodes

›Prior hernia repair

›Prior procedures

›Vasectomy

›Recent catheterization

›Urologic surgery

Chronic disease modifiers

›Comorbidities increasing risk

›Diabetes mellitus (E11.9)

›Chronic kidney disease (N18.9)

›HIV disease (B20)

›Cirrhosis (K74.60)

›Baseline functional status

›Independent ADLs

›Requires assistance

10Physical Exam/exam38

Initial appearance and vitals interpretation

›General

›Toxic appearance

›Diaphoresis

›Pain behavior out of proportion

›Vital sign patterns

›Persistent tachycardia

›Fever pattern

›Hypotension pattern

Abdominal and groin

›Abdomen

›Suprapubic tenderness

›Peritonitis

›CVA tenderness

›Groin and hernia

›Inguinal bulge

›Reducibility

›Skin changes over hernia

Genital exam

›Inspection

›Scrotal swelling

›Erythema

›Skin discoloration

›Lesions

›Palpation

›Testis tenderness focal or diffuse

›Epididymal tenderness

›Spermatic cord tenderness

›Testis lie and position

›Reflexes and signs

›Cremasteric reflex present

›Cremasteric reflex absent

›Blue dot sign

›Perineum

›Crepitus

›Tenderness beyond scrotum

›Anal or perianal pathology

Rectal exam when indicated

›Prostate and anorectal

›Prostate tenderness

›Perirectal abscess signs

›Gross blood

11Lab Studies/labs30

Urine and STI testing

›Urinalysis with microscopy

›Pyuria pattern supporting infection

›Hematuria supporting stone or trauma

›Urine culture

›Indicated with suspected bacterial epididymo orchitis

›Prior antibiotics reduce yield

›NAAT for gonorrhea and chlamydia

›First catch urine when discharge absent

›Empiric treatment not delayed when high suspicion

Bloodwork for systemic illness

›CBC

›Leukocytosis supporting infection

›Leukopenia as severe sepsis marker

›BMP

›Creatinine for contrast and antibiotic dosing

›Potassium abnormalities in vomiting or renal disease

›CRP

›Elevated in infection and inflammation

›Non specific elevation limitations

›Lactate

›Sepsis marker and resuscitation target

›Elevated lactate not specific for necrotizing infection

Pre procedure and severe infection labs

›Coagulation studies

›Surgical planning when torsion or debridement likely

›Anticoagulant effect assessment

›Type and screen

›Suspected rupture or major hematoma

›Suspected necrotizing infection with operative plan

›Blood cultures

›Suspected sepsis

›Antibiotics prior to cultures when unstable

12Imaging/img35

Scoring Systems

›Risk stratification tools

›TWIST score for pediatric torsion suspicion

›High risk score supports immediate urology pathway

›Not a replacement for clinical judgment

›LRINEC score for necrotizing fasciitis concern

›Limited sensitivity

›Low score does not exclude Fournier gangrene

›Fournier Gangrene Severity Index

›Prognostic use in confirmed cases

›Not for ruling out disease

MRI

›MRI pelvis or scrotum considerations

›Problem solving when ultrasound equivocal and stable

›Limited availability for time critical torsion

›Contraindications

›Non compatible implanted devices

›Unstable patient monitoring limitations

›CT abdomen pelvis indications

›Suspected Fournier gangrene extent assessment

›Suspected ureterolithiasis with referred pain

›Suspected intra abdominal source when exam suggests

›CT precautions

›IV contrast nephrotoxicity risk in CKD

›Radiation exposure risk in pediatrics

›Do not delay surgery for torsion for CT

Ultrasound

›Scrotal ultrasound with Doppler

›First line imaging when torsion not clinically certain

›Decreased or absent flow supporting torsion

›Hyperemia supporting epididymitis

›Ultrasound pitfalls

›Early torsion may have preserved flow

›Intermittent torsion may normalize between episodes

›Comparison with contralateral side improves interpretation

›POCUS role

›Adjunct when radiology delay

›Not a substitute for surgical decision when high suspicion

13Special Tests/spec18

Bedside maneuvers and signs

›Torsion related bedside findings

›Cremasteric reflex assessment

›Testis lie assessment

›High riding testis assessment

›Epididymitis related bedside findings

›Epididymal focal tenderness

›Scrotal skin warmth

›Prehn sign limitations

Procedural and adjunct tests

›Transillumination

›Hydrocele support

›Not diagnostic for torsion

›Hernia reduction attempt considerations

›Avoid repeated attempts with ischemia signs

›Surgical consultation when irreducible or toxic

›Manual detorsion considerations

›High suspicion with delayed operative access

›Pain relief does not exclude residual torsion

›Definitive management requires urgent orchiopexy

14ECG/ecg9

When ECG is relevant

›Indications

›Sepsis with hypotension

›Older patient with syncope or chest symptoms

›Pre operative evaluation when time allows and stable

High risk patterns when obtained

›Ischemia and instability patterns

›ST elevation

›New ST depression

›Ventricular tachycardia

›High grade AV block

15Assessment/ax18

Working diagnosis and severity

›Testicular torsion probability

›High probability clinical diagnosis

›Intermediate probability needing expedited ultrasound

›Low probability with alternative diagnosis favored

›Infection severity

›Uncomplicated epididymitis candidate for outpatient therapy

›Complicated infection requiring admission

›Necrotizing infection concern requiring immediate surgical pathway

Complications to rule out

›Threats to organ viability

›Testicular ischemia

›Testicular rupture

›Systemic threats

›Sepsis

›Acute kidney injury from dehydration or infection

Diagnostic uncertainty and pitfalls

›Pitfall checks

›Normal ultrasound does not exclude intermittent torsion

›Pain improvement after analgesia does not reduce torsion risk

›Scrotal cellulitis can coexist with deeper infection

16Plan/plan38

First 5 minutes and critical pathway

›Immediate priorities

›Continuous monitoring for unstable vitals

›IV access

›Analgesia early

›NPO when surgical diagnosis possible

›Time critical consult triggers

›Suspected torsion immediate urology

›Suspected Fournier gangrene immediate urology and general surgery

›Strangulated hernia concern immediate surgery

Diagnostic sequencing

›High torsion suspicion

›Urology consult without imaging delay

›Ultrasound only if it does not delay operative management

›Intermediate torsion suspicion

›Stat scrotal Doppler ultrasound

›Reassessment after imaging and analgesia

›Infection suspected

›UA and urine culture

›NAAT for gonorrhea and chlamydia

›Bloodwork if fever or systemic features

Therapeutics

›Analgesia

›NSAID first line when not contraindicated

›Opioid adjunct for severe pain

›Antibiotics for epididymitis

›STI regimen when risk present

›Enteric regimen when insertive anal intercourse or urinary instrumentation

›Fournier gangrene pathway

›Broad spectrum antibiotics immediate

›Hemodynamic resuscitation per sepsis protocol

›Emergent operative debridement

Monitoring and reassessment loop

›Reassessment timing

›Pain score within 30 minutes after analgesia

›Repeat genital exam with any change in symptoms

›Vital signs every 30 to 60 minutes when systemic features

›Escalation triggers

›Worsening swelling

›New fever

›New hypotension

›Increasing pain out of proportion

17Disposition/dispo21

ICU and resuscitation level care

›ICU criteria

›Septic shock requiring vasopressors

›Necrotizing infection requiring repeated debridement

›Altered mental status with infection

Admission and operative pathways

›Admission indications

›Suspected torsion pending OR

›Fournier gangrene

›Epididymo orchitis with systemic toxicity

›Unable to tolerate oral intake

›Immunocompromised with suspected infection

›Operative timing considerations

›Torsion time sensitivity local protocol dependent

›Necrotizing infection debridement without delay

Discharge and observation

›Discharge criteria

›Alternative diagnosis with low torsion probability

›Pain controlled on oral medications

›No systemic toxicity

›Reliable follow up and return precautions

›Observation pathway criteria

›Equivocal ultrasound with persistent symptoms

›Need serial exams and repeat imaging consideration

18Discharge Instructions/di20

Copy discharge instructions

›Scrotal pain evaluation completed today

›Testicular torsion can threaten the testicle and needs urgent care if symptoms worsen

›Return immediately for sudden worsening pain or new swelling

›Medications

›Take prescribed antibiotics exactly as directed if given

›Pain control as directed

›Avoid alcohol with sedating medications

›Activity

›Scrotal support as needed

›Avoid heavy lifting until improving

›Follow up

›Urology follow up within 24 to 72 hours when advised

›Primary care follow up within 3 to 7 days for symptom check

›Return to ED now for

›Sudden severe testicular pain

›Increasing swelling or redness

›Fever

›Vomiting preventing fluids

›Fainting or weakness

›Spreading skin discoloration or foul smelling drainage

19References/r6

Guidelines and key sources

›Core references

›American Urological Association acute scrotum and torsion educational guidance local protocol dependent

›Centers for Disease Control and Prevention STI Treatment Guidelines epididymitis 2021

›European Association of Urology urological infections guideline latest version local protocol dependent

›IDSA skin and soft tissue infections guideline 2014 necrotizing infection section

›Pediatric torsion risk stratification TWIST score derivation and validation studies

Evidence & Review

Reviewed by SymptomDx Medical Team · Last reviewed February 24, 2026

SymptomDx is an educational tool for medical professionals. It does not replace clinical judgment. Verify all clinical data and drug dosages with authoritative sources.

Scrotal PainAPPROACH

RENAL AND URINARY · 19 SECTIONS

⚲

522 items

☷ Legend

⚲

Resuscitation and Universal Approaches9▾

Chest and Cardiovascular12▾

Respiratory11▾

Abdominal and Gastrointestinal24▾

Renal and Urinary7▾

Oliguria And Anuria Catheter Related Urinary Complaints Dialysis Patient Presentations Flank Pain And Renal Colic Concern Urinary Retention Hematuria Scrotal Pain

Neurologic11▾

Back and Neck8▾

Women's Health, Pregnancy, and GU11▾

Infectious Disease and Fever Syndromes11▾

Allergy and Dermatology7▾

Musculoskeletal and Extremities14▾

Trauma and Wounds14▾

ENT, Eye, Dental10▾

Endocrine, Metabolic, and Abnormal Labs9▾

Toxicology and Behavioral14▾

Pediatrics16▾

Environmental and Exposure4▾

01History/hx80

HPI overview

›Core symptom characterization

›Acute onset minutes to hours

›Subacute onset hours to days

›Chronic or recurrent pattern weeks to months

›Laterality

›Right

›Left

›Bilateral

›Baseline testicular position changes

›High riding testis history

›Horizontal lie history

OPQRST

›Onset

›Sudden onset

›Gradual onset

›Time from onset to presentation

›Provocation and palliation

›Triggered by exertion

›Triggered by sexual activity

›Triggered by trauma

›Worse with movement or walking

›Relief with scrotal support

›Quality

›Severe sharp pain

›Dull ache

›Burning or dysuria associated

›Pain out of proportion to exam

›Region and radiation

›Lower abdomen or suprapubic radiation

›Inguinal canal radiation

›Flank radiation

›Perineal or rectal radiation

›Severity

›Rapid escalation to severe pain

›Mild to moderate persistent pain

›Pain limiting ambulation

›Timing

›Constant

›Intermittent

›Recurrent self resolving episodes

Associated symptoms

›Genitourinary

›Dysuria

›Frequency

›Urgency

›Hematuria

›Urethral discharge

›Urinary retention

›Systemic

›Fever

›Rigors

›Malaise

›Nausea

›Vomiting

›Dermatologic and soft tissue

›Scrotal swelling

›Scrotal erythema

›Skin bullae

›Skin discoloration

›Foul odor

Sexual and exposure history

›Sexual exposures

›New partner in past 60 days

›Condom use pattern

›Insertive anal intercourse exposure

›STI risk and prior infections

›Prior gonorrhea

›Prior chlamydia

›Prior HIV diagnosis

›Recent GU procedures

›Catheterization

›Cystoscopy

›Vasectomy

›Ureteroscopy

Pediatric and adolescent specific

›Age specific torsion considerations

›Neonate torsion concern

›Pubertal torsion peak concern

›Activity and exertion triggers

›Sports participation

›Recent running or jumping

›Caregiver timeline reliability

›Exact last known well time

›Intermittent pain episodes

02Alarm Features/alarm39

Time critical diagnoses triggers

›Immediate urology activation triggers

›Sudden severe unilateral scrotal pain

›High riding testis

›Horizontal lie

›Absent cremasteric reflex

›Nausea or vomiting with scrotal pain

›Necrotizing infection triggers

›Pain out of proportion

›Rapidly progressive swelling or erythema

›Crepitus

›Bullae

›Skin necrosis

›Toxic appearance

›Incarceration and ischemia triggers

›Irreducible inguinal or scrotal mass

›Overlying skin changes

›Vomiting or obstipation

›Peritonitis

Vital sign danger thresholds

›High risk physiology

›Hypotension

›Systolic blood pressure less than 90 mmHg

›MAP less than 65 mmHg

›Tachycardia

›Heart rate 130 or higher

›Persistent tachycardia after analgesia

›Fever

›Temperature 38.5 C or higher

›Hypothermia in suspected sepsis

›Respiratory compromise

›Respiratory rate 30 or higher

›Oxygen saturation less than 92 percent on room air

High risk exam findings

›Scrotal and perineal exam red flags

›Testis tenderness with abnormal lie

›Diffuse scrotal wall edema with crepitus

›Perineal tenderness

›Rectal tenderness with systemic toxicity

›Abdominal and vascular red flags

›Pulsatile abdominal mass

›Severe flank pain with hematuria and hypotension

03Medications/meds32

Medication reconciliation

›Current medication classes affecting evaluation

›Anticoagulants

›Antiplatelets

›Immunosuppressants

›SGLT2 inhibitors

›Chronic opioids

›Recent antibiotics

›Beta lactams

›Fluoroquinolones

›Doxycycline or macrolides

Medication related risks

›Bleeding and hematoma risk

›Warfarin

›DOACs

›Heparin products

›Immunocompromise and severe infection risk

›Chronic steroids

›Biologics

›Chemotherapy

Analgesia and antimicrobial examples

›Analgesia options

›Acetaminophen PO 1000 mg

›Ibuprofen PO 600 mg

›Ketorolac IV 15 mg

›Hydromorphone IV 0.5 mg

›Epididymitis likely STI coverage

›Ceftriaxone IM 500 mg single dose

›Doxycycline PO 100 mg twice daily for 7 days

›Epididymitis likely enteric coverage

›Levofloxacin PO 500 mg daily for 10 days

›Fluoroquinolone tendon risk

›Local protocol dependent

›Antibiotic selection based on resistance patterns

›Renal dosing adjustments when reduced GFR

04Diet/diet14

Recent intake and hydration

›Intake pattern

›Poor oral intake

›Vomiting limiting intake

›Normal intake

›Hydration indicators

›Reduced urine output

›Dark urine

›Orthostatic symptoms

Exposures relevant to differential

›Alcohol and substances

›Alcohol binges

›Cocaine or stimulant use

›Caffeine and energy drinks

›High caffeine use

›Recent increase in use

05Review of Systems/ros24

Constitutional and infectious

›Systemic symptoms

›Fever

›Chills

›Night sweats

›Weight loss

Genitourinary

›Urinary tract symptoms

›Dysuria

›Frequency

›Urgency

›Hematuria

›Flank pain

›Reproductive symptoms

›Urethral discharge

›Testicular swelling

›Pain with ejaculation

›Scrotal skin lesions

GI and vascular

›Abdominal symptoms

›Nausea

›Vomiting

›Constipation

›Diarrhea

›Vascular symptoms

›Syncope

›Lightheadedness

06Collateral History and Family History/chafh11

Collateral source

›Source and reliability

›Patient historian reliability

›Caregiver historian reliability

›EMS report

Family history

›Relevant inherited conditions

›Testicular cancer family history

›Bleeding disorders family history

›Sickle cell disease family history

›Early cardiovascular disease history

›Myocardial infarction before age 55 in first degree relative

›Myocardial infarction before age 65 in first degree relative

07Risk Factors/rf20

Torsion and anatomic risks

›Torsion risk factors

›Prior intermittent torsion episodes

›Undescended testis history

›Bell clapper deformity history

Infection and necrotizing infection risks

›Epididymo orchitis risk factors

›STI exposure

›Recent urinary instrumentation

›Bladder outlet obstruction

›Fournier gangrene risk factors

›Diabetes mellitus (E11.9)

›Obesity (E66.9)

›Alcohol use disorder (F10.20)

›Immunosuppression

Trauma and bleeding risks

›Trauma risks

›Contact sports exposure

›Straddle injury

›Sexual trauma

›Bleeding risks

›Therapeutic anticoagulation

›Thrombocytopenia history

08Differential Diagnosis/ddx53

Life threatening

›Cannot miss

›Testicular torsion (N44)

›Sudden onset severe unilateral pain

›High riding testis or horizontal lie

›Absent cremasteric reflex

›Fournier gangrene necrotizing fasciitis (M72.6)

›Pain out of proportion

›Systemic toxicity

›Crepitus or bullae

›Incarcerated or strangulated inguinal hernia (K40.3)

›Irreducible groin mass

›Bowel obstruction symptoms

›Testicular rupture after trauma

›Significant blunt trauma

›Expanding hematoma

›Sepsis from epididymo orchitis (A41.9)

›Fever with hypotension

›Elevated lactate

Common

›High frequency etiologies

›Epididymitis or epididymo orchitis (N45)

›Gradual onset

›Dysuria or discharge

›Torsion of appendix testis

›Localized superior pole tenderness

›Blue dot sign

›Hydrocele (N43)

›Painless swelling

›Fluctuant mass

›Varicocele (I86.1)

›Dull ache worse with standing

›Improves with supine position

›Acute scrotal cellulitis

›Skin predominant tenderness

›No testicular focal tenderness

Less common and mimics

›Other considerations

›Renal colic referred pain (N20.0)

›Flank pain

›Hematuria

›Acute prostatitis (N41.0)

›Perineal pain

›Fever

›Testicular tumor (C62)

›Mass

›Subacute heaviness

›Segmental testicular infarction

›Focal tenderness

›Mimics tumor on imaging

›Vasculitis including Henoch Schonlein purpura

›Purpura

›Abdominal pain

›Sickle cell related priapism associated pain

›Sickle cell disease (D57.1)

›Genitourinary pain crisis

09Past Medical History/pmh16

Prior genitourinary history

›Relevant prior conditions

›Prior torsion or orchiopexy

›Prior epididymitis episodes

›Prior hernia repair

›Prior procedures

›Vasectomy

›Recent catheterization

›Urologic surgery

Chronic disease modifiers

›Comorbidities increasing risk

›Diabetes mellitus (E11.9)

›Chronic kidney disease (N18.9)

›HIV disease (B20)

›Cirrhosis (K74.60)

›Baseline functional status

›Independent ADLs

›Requires assistance

10Physical Exam/exam38

Initial appearance and vitals interpretation

›General

›Toxic appearance

›Diaphoresis

›Pain behavior out of proportion

›Vital sign patterns

›Persistent tachycardia

›Fever pattern

›Hypotension pattern

Abdominal and groin

›Abdomen

›Suprapubic tenderness

›Peritonitis

›CVA tenderness

›Groin and hernia

›Inguinal bulge

›Reducibility

›Skin changes over hernia

Genital exam

›Inspection

›Scrotal swelling

›Erythema

›Skin discoloration

›Lesions

›Palpation

›Testis tenderness focal or diffuse

›Epididymal tenderness

›Spermatic cord tenderness

›Testis lie and position

›Reflexes and signs

›Cremasteric reflex present

›Cremasteric reflex absent

›Blue dot sign

›Perineum

›Crepitus

›Tenderness beyond scrotum

›Anal or perianal pathology

Rectal exam when indicated

›Prostate and anorectal

›Prostate tenderness

›Perirectal abscess signs

›Gross blood

11Lab Studies/labs30

Urine and STI testing

›Urinalysis with microscopy

›Pyuria pattern supporting infection

›Hematuria supporting stone or trauma

›Urine culture

›Indicated with suspected bacterial epididymo orchitis

›Prior antibiotics reduce yield

›NAAT for gonorrhea and chlamydia

›First catch urine when discharge absent

›Empiric treatment not delayed when high suspicion

Bloodwork for systemic illness

›CBC

›Leukocytosis supporting infection

›Leukopenia as severe sepsis marker

›BMP

›Creatinine for contrast and antibiotic dosing

›Potassium abnormalities in vomiting or renal disease

›CRP

›Elevated in infection and inflammation

›Non specific elevation limitations

›Lactate

›Sepsis marker and resuscitation target

›Elevated lactate not specific for necrotizing infection

Pre procedure and severe infection labs

›Coagulation studies

›Surgical planning when torsion or debridement likely

›Anticoagulant effect assessment

›Type and screen

›Suspected rupture or major hematoma

›Suspected necrotizing infection with operative plan

›Blood cultures

›Suspected sepsis

›Antibiotics prior to cultures when unstable

12Imaging/img35

Scoring Systems

›Risk stratification tools

›TWIST score for pediatric torsion suspicion

›High risk score supports immediate urology pathway

›Not a replacement for clinical judgment

›LRINEC score for necrotizing fasciitis concern

›Limited sensitivity

›Low score does not exclude Fournier gangrene

›Fournier Gangrene Severity Index

›Prognostic use in confirmed cases

›Not for ruling out disease

MRI

›MRI pelvis or scrotum considerations

›Problem solving when ultrasound equivocal and stable

›Limited availability for time critical torsion

›Contraindications

›Non compatible implanted devices

›Unstable patient monitoring limitations

›CT abdomen pelvis indications

›Suspected Fournier gangrene extent assessment

›Suspected ureterolithiasis with referred pain

›Suspected intra abdominal source when exam suggests

›CT precautions

›IV contrast nephrotoxicity risk in CKD

›Radiation exposure risk in pediatrics

›Do not delay surgery for torsion for CT

Ultrasound

›Scrotal ultrasound with Doppler

›First line imaging when torsion not clinically certain

›Decreased or absent flow supporting torsion

›Hyperemia supporting epididymitis

›Ultrasound pitfalls

›Early torsion may have preserved flow

›Intermittent torsion may normalize between episodes

›Comparison with contralateral side improves interpretation

›POCUS role

›Adjunct when radiology delay

›Not a substitute for surgical decision when high suspicion

13Special Tests/spec18

Bedside maneuvers and signs

›Torsion related bedside findings

›Cremasteric reflex assessment

›Testis lie assessment

›High riding testis assessment

›Epididymitis related bedside findings

›Epididymal focal tenderness

›Scrotal skin warmth

›Prehn sign limitations

Procedural and adjunct tests

›Transillumination

›Hydrocele support

›Not diagnostic for torsion

›Hernia reduction attempt considerations

›Avoid repeated attempts with ischemia signs

›Surgical consultation when irreducible or toxic

›Manual detorsion considerations

›High suspicion with delayed operative access

›Pain relief does not exclude residual torsion

›Definitive management requires urgent orchiopexy

14ECG/ecg9

When ECG is relevant

›Indications

›Sepsis with hypotension

›Older patient with syncope or chest symptoms

›Pre operative evaluation when time allows and stable

High risk patterns when obtained

›Ischemia and instability patterns

›ST elevation

›New ST depression

›Ventricular tachycardia

›High grade AV block

15Assessment/ax18

Working diagnosis and severity

›Testicular torsion probability

›High probability clinical diagnosis

›Intermediate probability needing expedited ultrasound

›Low probability with alternative diagnosis favored

›Infection severity

›Uncomplicated epididymitis candidate for outpatient therapy

›Complicated infection requiring admission

›Necrotizing infection concern requiring immediate surgical pathway

Complications to rule out

›Threats to organ viability

›Testicular ischemia

›Testicular rupture

›Systemic threats

›Sepsis

›Acute kidney injury from dehydration or infection

Diagnostic uncertainty and pitfalls

›Pitfall checks

›Normal ultrasound does not exclude intermittent torsion

›Pain improvement after analgesia does not reduce torsion risk

›Scrotal cellulitis can coexist with deeper infection

16Plan/plan38

First 5 minutes and critical pathway

›Immediate priorities

›Continuous monitoring for unstable vitals

›IV access

›Analgesia early

›NPO when surgical diagnosis possible

›Time critical consult triggers

›Suspected torsion immediate urology

›Suspected Fournier gangrene immediate urology and general surgery

›Strangulated hernia concern immediate surgery

Diagnostic sequencing

›High torsion suspicion

›Urology consult without imaging delay

›Ultrasound only if it does not delay operative management

›Intermediate torsion suspicion

›Stat scrotal Doppler ultrasound

›Reassessment after imaging and analgesia

›Infection suspected

›UA and urine culture

›NAAT for gonorrhea and chlamydia

›Bloodwork if fever or systemic features

Therapeutics

›Analgesia

›NSAID first line when not contraindicated

›Opioid adjunct for severe pain

›Antibiotics for epididymitis

›STI regimen when risk present

›Enteric regimen when insertive anal intercourse or urinary instrumentation

›Fournier gangrene pathway

›Broad spectrum antibiotics immediate

›Hemodynamic resuscitation per sepsis protocol

›Emergent operative debridement

Monitoring and reassessment loop

›Reassessment timing

›Pain score within 30 minutes after analgesia

›Repeat genital exam with any change in symptoms

›Vital signs every 30 to 60 minutes when systemic features

›Escalation triggers

›Worsening swelling

›New fever

›New hypotension

›Increasing pain out of proportion

17Disposition/dispo21

ICU and resuscitation level care

›ICU criteria

›Septic shock requiring vasopressors

›Necrotizing infection requiring repeated debridement

›Altered mental status with infection

Admission and operative pathways

›Admission indications

›Suspected torsion pending OR

›Fournier gangrene

›Epididymo orchitis with systemic toxicity

›Unable to tolerate oral intake

›Immunocompromised with suspected infection

›Operative timing considerations

›Torsion time sensitivity local protocol dependent

›Necrotizing infection debridement without delay

Discharge and observation

›Discharge criteria

›Alternative diagnosis with low torsion probability

›Pain controlled on oral medications

›No systemic toxicity

›Reliable follow up and return precautions

›Observation pathway criteria

›Equivocal ultrasound with persistent symptoms

›Need serial exams and repeat imaging consideration

18Discharge Instructions/di20

Copy discharge instructions

›Scrotal pain evaluation completed today

›Testicular torsion can threaten the testicle and needs urgent care if symptoms worsen

›Return immediately for sudden worsening pain or new swelling

›Medications

›Take prescribed antibiotics exactly as directed if given

›Pain control as directed

›Avoid alcohol with sedating medications

›Activity

›Scrotal support as needed

›Avoid heavy lifting until improving

›Follow up

›Urology follow up within 24 to 72 hours when advised

›Primary care follow up within 3 to 7 days for symptom check

›Return to ED now for

›Sudden severe testicular pain

›Increasing swelling or redness

›Fever

›Vomiting preventing fluids

›Fainting or weakness

›Spreading skin discoloration or foul smelling drainage

19References/r6

Guidelines and key sources

›Core references

›American Urological Association acute scrotum and torsion educational guidance local protocol dependent

›Centers for Disease Control and Prevention STI Treatment Guidelines epididymitis 2021

›European Association of Urology urological infections guideline latest version local protocol dependent

›IDSA skin and soft tissue infections guideline 2014 necrotizing infection section

›Pediatric torsion risk stratification TWIST score derivation and validation studies

Evidence & Review

Reviewed by SymptomDx Medical Team · Last reviewed February 24, 2026

SymptomDx is an educational tool for medical professionals. It does not replace clinical judgment. Verify all clinical data and drug dosages with authoritative sources.