USMLE® Step 1 style questions USMLE
A 42-year-old man comes to the office because of a 7-month history of suprapubic, and penile pain. His medical history is relevant for non-celiac gluten sensitivity. When asked about his sexual history, the patient mentions that he is in a monogamous heterosexual relationship and he denies unsafe sexual practices. Upon further questioning, the patient complains of burning pain after ejaculation and transient urinating difficulty for approximately 2 hours after sexual intercourse. Rectal exam shows a normal sized prostate gland. His temperature is 36.6°C (97.8°F), pulse is 78/min, respirations are 18/min, blood pressure is 110/70 mmHg. Three-glass urinalysis and urine culture are normal. Which of the following is the most likely cause of this patient's current condition?