Management of Infected Hydrocele
Infected hydrocele requires urgent surgical exploration with hydrocelectomy combined with broad-spectrum intravenous antibiotics targeting both gram-positive and gram-negative organisms, followed by culture-directed antimicrobial therapy. 1, 2
Immediate Assessment and Diagnosis
When evaluating suspected infected hydrocele, perform the following:
- Obtain urgent scrotal ultrasound examination to differentiate from testicular torsion, epididymitis, abscess formation, or other acute scrotal pathology 3
- Assess for systemic signs of infection including fever, tachycardia, and signs of sepsis 2
- Obtain midstream urine for culture and urethral swab if sexually transmitted infection is suspected 3
- Look specifically for tender, erythematous scrotal swelling with fluctuance suggesting fluid collection 1, 2
Critical pitfall: Do not delay surgical exploration in neonates or infants with acute scrotal pathology, as infected hydrocele can be associated with epididymal microabscess and requires immediate intervention 1
Surgical Management
Proceed with urgent surgical exploration and hydrocelectomy as the definitive treatment:
- High ligation of the processus vaginalis (if communicating) combined with complete hydrocelectomy is the procedure of choice 2
- Surgical drainage allows for source control, culture of fluid, and prevention of complications including testicular compromise and infertility 4
- In pediatric cases, hospitalization and surgical exploration are mandatory for any suspected infected scrotal pathology 1
Antimicrobial Therapy
Initiate empiric broad-spectrum intravenous antibiotics immediately:
- For severe infections, use combination therapy such as piperacillin-tazobactam 4.5 g every 6-8 hours IV plus vancomycin 15 mg/kg every 12 hours, OR a carbapenem (imipenem-cilastatin 1 g every 6-8 hours IV or meropenem 1 g every 8 hours IV) 3
- Alternative regimen: cefotaxime 2 g every 6 hours IV plus metronidazole 500 mg every 6 hours IV for anaerobic coverage 3
- Tailor antibiotics based on intraoperative culture results and antimicrobial sensitivities 3
Important consideration: If gonorrhea is suspected in the differential (particularly in sexually active patients with epididymo-orchitis), add ceftriaxone 1000 mg IV plus an antibiotic active against Chlamydia trachomatis 3
Post-Operative Management
- Continue culture-directed antimicrobial therapy for 7-14 days depending on clinical response 3
- Monitor for complications including recurrence, testicular atrophy, and fertility issues 4
- Follow-up at 6 months is recommended to assess for resolution and evaluate testicular function, particularly in men of reproductive age 4
Key clinical pearl: Infected hydrocele can significantly impact fertility—one case series demonstrated improvement in sperm count from 1.1 million/ml to 43 million/ml at 18 months post-hydrocelectomy 4