A form of prostatitis caused by bacterial infection, usually from a urinary tract infection, with bacteriuria.

Acute bacterial prostatitis is a febrile illness with sudden onset; pain in the lumbar and perineal regions, dysuria with frequency of urination, urgency, and nocturia urination; a tender, swollen prostate; and other symptoms.

Chronic bacterial prostatism is a mild condition caused by recurrent urinary tract infections with bacteriuria and other variable symptoms; such as, pain and dysuria, but rarely with fever.