Prostatitis is the most common urological diagnosis in men younger than 50 years of age and the third most common urological diagnosis in men older than 50 years of age after two major prostatic diseases ? benign prostatic hyperplasia and prostatic cancer. Acute bacterial prostatitis is a rare disease that accounts for about 5% of prostatitis cases but is relatively easy to diagnose due to its clinical symptoms. This disease constitutes a urological emergence, with obvious signs and symptoms of a urinary tract infection, including dysuria, and urinary frequency. With acute bacterial prostatitis, patients often present with intense suprapubic pain, urinary obstruction, fever, malaise, arthralgia, and myalgia. The most frequent bacteria responsible for causing acute bacterial prostatitis include Escherichia coli, Enterococcus, Proteus, Pseudomonas, Klebsiella, and Serratia. Antimicrobial treatment should be initiated immediately in patients presenting with acute bacterial prostatitis. Initially, parenteral administration of high doses of antibiotics, such as a broad-spectrum penicillin derivatives, a third-generation cephalosporin with or without an aminoglycoside, or a quinolone, are required until the fever and other signs and symptoms of infection subside. After initial improvement, an oral regimen, in particular quinolone, is appropriate and should be prescribed for at least 4 weeks.