EpididymitisMANAGEMENT

GENITOURINARY AND REPRODUCTIVE PRESENTATIONS · 12 SECTIONS

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421 items

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Cardiovascular Presentations71▾

Respiratory Presentations52▾

Neurological Presentations83▾

Gastrointestinal Presentations74▾

Genitourinary and Reproductive Presentations48▾

Acute Kidney Injury (ATN)Acute Kidney Injury (Post-renal)Acute Kidney Injury (Pre-renal)Amniotic Fluid Embolism Balanitis Bladder Rupture Breast Abscess Cystitis Dialysis access complications Ectopic pregnancy Epididymitis Glomerulonephritis Hematuria (gross)Hydrocele Interstitial Cystitis Mastitis Mittelschmerz Nephrolithiasis Nephrotic Syndrome Flare Nutcracker Syndrome Orchitis Ovarian Cyst Rupture Ovarian hyperstimulation syndrome Ovarian torsion Paraphimosis Pelvic Congestion Syndrome Pelvic Inflammatory Disease (PID)Peritoneal dialysis peritonitis Phimosis Priapism Prostatitis Pyelonephritis Renal laceration Renal transplant complications and rejection Ruptured ovarian cyst Testicular torsion Torsion of Appendix Testis Tubo-ovarian abscess Ureteral Rupture Urethritis Urinary Retention Urinary tract infection (uncomplicated)Urolithiasis (renal colic)Vaginal bleeding (non-pregnant)Vaginitis (Bacterial)Vaginitis (Candidal)Varicocele Vulvovaginal Hematoma

Infectious Disease Presentations148▾

Trauma Presentations89▾

Toxicologic Presentations80▾

Psychiatric Presentations26▾

Musculoskeletal and Rheumatologic Presentations96▾

Dermatology Presentations23▾

Environmental and Exposure Presentations27▾

Hematologic and Oncologic Presentations36▾

Pediatric-Specific Presentations19▾

Endocrine and Metabolic Presentations45▾

ENT and Maxillofacial Presentations27▾

Ophthalmologic Presentations19▾

Obstetric Presentations23▾

Systemic and Miscellaneous Presentations17▾

01Approach to the Critical Patient/attcp35

Immediate priorities

›Triage and stabilization

›Sepsis physiology

›Fever

›Tachycardia

›Hypotension

›Severe pain physiology

›Diaphoresis

›Vomiting

›If hemodynamic instability, initiate sepsis pathway

›Isotonic crystalloid 30 mL/kg for hypotension or lactate >= 4 mmol/L

›Broad-spectrum antibiotics within 1 hour for septic shock

›If suspected testicular torsion, immediate urology consult without delay for labs

›Time-dependent ischemic risk

›Ultrasound only if it does not delay definitive care

Red-flag pattern recognition

›Time-critical exclusions

›Testicular torsion exclusion

›Sudden onset severe unilateral scrotal pain

›High-riding testis

›Fournier gangrene exclusion

›Perineal pain out of proportion

›Crepitus

›Incarcerated hernia exclusion

›Irreducible inguinal mass

›Obstructive symptoms

Key concepts

›Working diagnosis framework

02History/hx46

Symptom characterization

›Presenting features

›Scrotal pain onset pattern

›Gradual onset over hours to days

›Sudden onset pattern

›Pain location and radiation

›Posterior scrotum

›Groin

›Swelling timeline

›Progressive enlargement

›Rapid enlargement

›Systemic symptoms

›Fever

›Chills

Genitourinary and sexual risk

›Exposure and risk profile

›Dysuria

›Urethritis symptoms

›Cystitis symptoms

›Urethral discharge

›Purulent

›Mucoid

›Sexual history elements

›New partner in last 60 days

›Condom use

›Insertive anal intercourse

›Enteric pathogen risk

›Fluoroquinolone coverage need

03Physical Exam/exam37

Scrotal examination

›Local findings

›Epididymal tenderness

›Posterior localization

›Focal to epididymal tail

›Testicular tenderness

›Orchitis association

›Diffuse tenderness pattern

›Swelling and erythema

›Scrotal wall edema

›Reactive hydrocele

›Cremasteric reflex

›Present

›Absent

Torsion-oriented exam

›Features increasing torsion probability

›Testis position

›High-riding

›Horizontal lie

›Pain onset profile

›Sudden onset

›Severe intensity at onset

›Nausea and vomiting

›Autonomic symptoms

›Disproportionate to urinary symptoms

Abdominal and inguinal exam

›Referred and alternative sources

›Inguinal canal

04Differential Diagnosis/ddx33

Life-threatening and must-not-miss

›High-risk conditions

›Testicular torsion

›ICD-10 N44.0

›Time-dependent salvage

›Fournier gangrene

›ICD-10 N49.3

›Necrotizing infection risk

›Incarcerated or strangulated inguinal hernia

›ICD-10 K40.3

›Bowel ischemia risk

Common mimics

›Alternative causes of acute scrotum

›Torsion of testicular appendage

›Blue dot sign

›Localized superior pole tenderness

›Orchitis

›Viral association

›Parotitis history

›Hydrocele or varicocele complications

›Chronic swelling baseline

›Acute pain trigger

›Scrotal cellulitis

›Diffuse skin tenderness

›No focal epididymal tenderness

Related GU infections

›Adjacent syndromes

›Urethritis

05Laboratory Tests/lt43

Urine testing

›Urinalysis and culture set

›Urinalysis

›Pyuria

›Nitrites

›Urine culture

›Suspected enteric organisms

›Recent antibiotics exposure

›Urine pregnancy test for patients with uterus

›Medication safety implications

›Imaging selection implications

STI testing

›Nucleic acid amplification testing

›Neisseria gonorrhoeae NAAT

›Urine specimen

›Swab specimen based on exposure sites

›Chlamydia trachomatis NAAT

›Urine specimen

›Swab specimen based on exposure sites

›HIV testing

›New STI diagnosis trigger

›High-risk sexual exposure

›Syphilis serology

›New STI diagnosis trigger

›Genital ulcer history

Systemic and complicated infection labs

›Systemic evaluation

›CBC for systemic infection concern

06Diagnostic Tests/dt43

Scoring Systems

›Torsion probability tools

›TWIST score context

›Risk stratification for torsion mimic

›Not a definitive rule-out

›TWIST elements

›Testicular swelling

›Hard testis

›Absent cremasteric reflex

›Nausea or vomiting

›High-riding testis

›Interpretation use

›High-risk score triggers immediate urology

›Intermediate risk supports urgent ultrasound

MRI

›Limited role imaging

›Indications

›Indeterminate ultrasound with persistent concern

›Complex mass evaluation after acute episode

›Limitations

›Access delays

›Not for time-critical torsion exclusion

›Adjacent pathology evaluation

›Indications

›Suspected Fournier gangrene

›Suspected incarcerated hernia

›Findings

07Disposition/dispo31

Admission and transfer criteria

›Higher level of care triggers

›Sepsis physiology

›Hypotension after fluids

›Lactate >= 4 mmol/L

›Severe uncontrolled pain

›IV analgesia requirement

›Intractable vomiting

›Complications on ultrasound

›Abscess

›Pyocele

›Inability to exclude torsion

›Equivocal ultrasound

›Persistent high clinical concern

Discharge suitability

›Outpatient management criteria

›Hemodynamic stability

›No hypotension

›No persistent tachycardia after analgesia

›Oral intake tolerance

›Hydration adequate

›Oral antibiotics feasible

›Reliable follow-up

›Re-evaluation plan in 48 to 72 hours if not improving

›Urology follow-up for persistent symptoms

Follow-up timing

›Reassessment targets

›Symptom improvement window

08Treatment/t57

Supportive care

›Symptom control and local measures

›Analgesia

›Acetaminophen 1000 mg PO every 6 to 8 hours as needed

›Ibuprofen 400 to 600 mg PO every 6 to 8 hours as needed

›Antiemetic for nausea

›Ondansetron 4 mg ODT or PO every 8 hours as needed

›Scrotal support

›Athletic supporter

›Elevation

›Ice packs

›15 to 20 minutes on

›Barrier cloth to skin

Antibiotics for likely STI pathogens

›Empiric regimen for gonorrhea and chlamydia coverage

›Ceftriaxone 500 mg IM once

›If weight >= 150 kg, ceftriaxone 1000 mg IM once

›Class I recommendation based on national STI guideline consensus

›Doxycycline 100 mg PO twice daily for 10 days

›Contraindicated in pregnancy

›Photosensitivity counseling

Antibiotics for enteric pathogens

›Empiric regimen for urinary source or anal intercourse

›Ceftriaxone 500 mg IM once

›Gonorrhea coverage if risk present

›Dual-pathogen risk profile

›Levofloxacin 500 mg PO daily for 10 days

›QT prolongation risk

09Special Populations/sp30

Pregnancy

›Pregnancy-specific considerations

›Medication selection

›Avoid doxycycline

›Avoid fluoroquinolones

›Alternative chlamydia therapy

›Azithromycin 1000 mg PO once

›Test of cure planning

›Imaging choices

›Ultrasound preferred

›CT only for life-threatening alternate diagnosis

Geriatric

›Older adult patterns

›Pathogen likelihood shift

›Enteric gram-negative predominance

›Lower STI probability without exposure risk

›Predisposing factors

›BPH with retention

›Instrumentation

›Medication risks

›Fluoroquinolone adverse effects increased

›Renal dosing adjustments based on creatinine

Pediatrics

›Pediatric acute scrotum priorities

›Torsion probability higher in adolescents

›Lower threshold for emergent ultrasound

›Lower threshold for urology consult

›Prepubertal epididymitis considerations

10Background/b27

Epidemiology

›Frequency and demographics

›Common cause of acute scrotal pain in sexually active males

›Peak incidence in ages 19 to 35 years for STI-associated cases

›Increased enteric cases with older age

›Recurrence risk

›Higher with untreated partner exposure

›Higher with urinary obstruction

Pathophysiology

›Mechanisms

›Ascending infection route

›Urethra to epididymis via vas deferens

›Associated urethritis and prostatitis

›Inflammatory sequelae

›Reactive hydrocele

›Scrotal wall edema

›Complications

›Epididymal abscess

›Infertility risk with bilateral disease

Therapeutic Considerations

›Treatment rationale

›Early antibiotics

›Symptom duration reduction

›Complication prevention

›Pathogen-directed regimens

›Dual therapy when STI likelihood present

›Enteric coverage when urinary source likely

›Public health considerations

11Patient Discharge Instructions/pdi25

Copy discharge instructions

›Discharge counseling

›Diagnosis explanation

›Epididymitis or epididymo-orchitis

›Infection and inflammation of scrotal structures

›Medications

›Take antibiotics exactly as prescribed

›Finish the full course even if improved

›Symptom care

›Scrotal support and elevation

›Ice packs 15 to 20 minutes at a time

›Ibuprofen or acetaminophen as directed

›Sexual health

›No sex until symptoms resolved and antibiotics completed

›Partner testing and treatment if STI suspected or confirmed

›Return now for any of the following

›Sudden worsening pain

›New nausea or vomiting with severe pain

›Fever or rigors

›Fainting or weakness

›Rapidly increasing swelling

›Spreading redness to groin or perineum

›Inability to urinate

›Follow-up plan

›Recheck if not improving within 48 to 72 hours

›Urology follow-up for persistent swelling or mass

12References/r14

Guidelines and primary sources

›STI treatment guidance

›National STI treatment guidelines for epididymitis regimens

›Ceftriaxone plus doxycycline for STI-associated epididymitis

›Ceftriaxone plus levofloxacin for anal intercourse risk

›Partner management recommendations

›Partner evaluation and treatment for gonorrhea or chlamydia exposure

›Abstinence until therapy complete

›Urologic and emergency care sources

›Acute scrotum evaluation standards

›Doppler ultrasound for torsion exclusion

›Immediate urology consultation when torsion suspected

›Complicated infection management principles

›Admission for sepsis physiology

›Drainage for abscess or pyocele

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Reviewed by SymptomDx Medical Team · Last reviewed August 18, 2026

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