Snapshot A 60-year-old man with a history of benign prostatic hyperplasia presents with one-sided testicular pain and urinary frequency. He also reports pain with urination. Physical exam reveals a swollen right testicle with substantial induration. Urinalysis reveals positive leukocyte esterase and 20 wbc/hpf. He is prescribed antibiotics for epididymitis. Introduction Clinical definition login to view 1 more bullet Epidemiology Incidence login to view 1 more bullet Demographics login to view 1 more bullet Risk factors login to view 2 more bullets Etiology Pathogens from sexually transmitted infections in men less than 35 years of age login to view 2 more bullets Urinary tract pathogens in men greater than 35 years of age login to view 2 more bullets Pathogenesis login to view 4 more bullets Presentation Symptoms login to view 4 more bullets Physical exam login to view 5 more bullets Imaging Ultrasound login to view 6 more bullets Studies Labs login to view 6 more bullets Differential Testicular torsion login to view 1 more bullet Treatment Medical login to view 8 more bullets Complications Sepsis Testicular atrophy Prognosis Resolves with antibiotics