Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 10/1/2025

Asymptomatic Infections and Testicular Atrophy

Introduction to Asymptomatic Infections

  • The Centers for Disease Control and Prevention (CDC) notes that asymptomatic infections, such as certain sexually transmitted infections like chlamydia, can cause asymptomatic epididymitis that may lead to complications 1

Sexually Transmitted Infections and Asymptomatic Presentation

  • Sexually transmitted epididymitis is usually accompanied by urethritis, which is often asymptomatic 1
  • Men can be asymptomatically infected with chlamydia and other STDs while still harboring active infection 2, 3, 4
  • The sensitivity of detecting asymptomatic chlamydial infection in males has varied from 46-100% depending on testing method 2, 5

Clinical Implications and Screening Recommendations

  • The US Preventive Services Task Force (USPSTF) recommends screening for chlamydia and gonorrhea in sexually active men who have sex with men, given median prevalence rates of 16% for gonorrhea and 12% for chlamydia in this population 8
  • Treatment of sex partners is critical—all partners within 60 days for asymptomatic infections should be evaluated and treated 2, 3, 9
  • Retesting 3 months after treatment is recommended due to high reinfection rates 8

Important Caveats

  • Most guidelines focus on symptomatic disease and partner notification rather than long-term sequelae of truly asymptomatic infection 2, 3, 4
  • The distinction between "asymptomatic" and "unrecognized mild symptoms" is often unclear in clinical practice 1