What are the potential causes of pus coming out of the urethra?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Pus discharge from the urethra is typically a sign of an underlying infection, such as a sexually transmitted infection (STI), urinary tract infection (UTI), or urethritis. In some cases, it may indicate a more serious condition like a prostatic abscess, which requires prompt medical attention.

Because urethral pus can point to several different conditions—ranging from easily treatable infections to complications that need urgent care—identifying the likely cause early is critical. A free, instant, online symptom check can help you understand what may be causing your symptoms and guide your next steps, whether that means seeing a primary care doctor, a urologist, or heading to urgent care.

Reviewed for medical accuracy: 07/15/2026

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Explanation

Pus coming out of the urethra can be a sign of an infection or other medical conditions. One potential cause is a prostatic abscess, which is a collection of pus in the prostate gland. This can occur when bacteria infect the prostate, leading to an abscess that might cause urethral discharge.

Another possible cause is related to issues with constipation and hemorrhoids. Constipation can lead to increased pressure in the pelvic area, which might affect the structures around the urethra and result in discharge. Hemorrhoids, which are swollen veins in the lower rectum or anus, can also contribute to this pressure.

If you notice pus coming from the urethra, it is important to seek medical advice to determine the exact cause and receive appropriate treatment. You can start by using a free symptom checker to help identify potential causes of your symptoms and understand when to seek professional care.

(References)

Shafik A. (1981). Urethral discharge, constipation, and hemorrhoids. New .... Urology, 7269018.
Faris G, Metz Y, Friedman B, Appel B, & Stein A. (2008). [Prostatic abscess--diagnosis and treatment]. Harefuah, 18814516.

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