How does cloudy urine in males suggest pus in the urethra?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Cloudy urine in males often indicates pus, blood, or excess proteins in the urethra, commonly caused by urinary tract infections (UTIs), sexually transmitted infections (STIs), kidney stones, or an enlarged prostate. Dehydration and certain dietary choices can also contribute. Because cloudy urine can signal anything from a minor issue to a serious infection, identifying the underlying cause early is key to effective treatment.

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Reviewed for medical accuracy: 07/15/2026

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Explanation

Cloudy urine in males may be a sign that there is pus in the urethra. This happens when there is an infection or inflammation in the urinary tract. Urinalysis, a test of urine, can help find out if there is pus. This test looks at the urine to see if there are any signs of infection or other problems.

Possible Causes:

Infections: These can be caused by bacteria or other germs. Infections can make the urine look cloudy.
Urethral Trichomoniasis: This is a type of infection caused by a tiny parasite. It can affect the urethra and make the urine cloudy.
Certain foods and substances can also cause cloudy urine. Other conditions, such as dehydration, can also make your urine look cloudy.

If you notice cloudy urine along with other concerning symptoms, you can check your symptoms to get personalized insights about what might be causing it and whether you should seek medical care.

(References)

Simerville JA, Maxted WC, & Pahira JJ. (2005). Urinalysis: a comprehensive review. American family physician, 15791892.
Otani T, Kobayashi M, Kondo A, Takita T, & Kato K. (1984). [Ectopic ureterocele of an adult male]. Hinyokika kiyo. Acta urologica Japonica, 6524557.
Latif AS, Mason PR, & Marowa E. (1987). Urethral trichomoniasis in men. Sexually transmitted diseases, 3494323.

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