" Prostatitis is a common condition involving inflammation or swelling of the prostate gland, located beneath the bladder in men. Nearly half of all men exhibit symptoms of prostatitis or similar conditions at some point in their lifetime, which can happen gradually or suddenly. Prostatitis commonly affects men under the age of 50. Causes & Types of Prostatitis There are four types of prostatitis: Acute Bacterial Prostatitis happens suddenly, with painful symptoms including fever, chills, a strong ...