Enlarged, tender prostate = Prostatitis.
[the man is monogamous which further confirms it isn’t gonorrhea or chlamydia]
Basically, acute prostatis is caused by organisms which cause UTI also.
Prostatitis
Characterized by dysuria, frequency, urgency, low back pain. Warm, tender, enlarged prostate.
Acute bacterial prostatitis—in older men most common bacterium is E coli; in young men consider C trachomatis, N gonorrhoeae.
Chronic prostatitis—either bacterial or nonbacterial (eg, 2° to previous infection, nerve problems, chemical irritation).
submitted by ∗xxabi(293)
Most common cause of acute prostatitis in older men is E. Coli, and then Pseudomonas.