Yellowish Semen: Is It a Sign of Urinary Tract Infection? - Urology

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The semen appears yellow?


Hello! Does yellow-green semen indicate a possible urinary tract infection? Thank you.

n/a, 20~29 year old female. Ask Date: 2012/12/16

Dr. Lin Hexing reply Urology


Hello: The presence of yellow-green semen does not necessarily indicate a urinary tract infection.
If it appears red, that would be a cause for concern.
If you have any doubts, you can visit a urology clinic for a semen analysis to determine if there are any issues.
Wishing you good health.

Reply Date: 2012/12/16

More Info


The appearance of yellowish or greenish semen can indeed raise concerns about potential urinary tract infections (UTIs) or other underlying health issues. However, it's essential to understand that the color of semen can be influenced by various factors, and not all changes in color indicate an infection.

Firstly, yellow or green semen may suggest the presence of infection, particularly if accompanied by other symptoms such as pain during urination, frequent urination, fever, or unusual discharge. Infections can lead to changes in the composition of semen, including the presence of pus or inflammatory cells, which can alter its color. Conditions such as prostatitis (inflammation of the prostate gland) or epididymitis (inflammation of the epididymis) can also cause changes in semen color and may be associated with UTIs.

However, it's important to note that not all cases of yellow or green semen are due to infections. Other factors can contribute to this discoloration, including:
1. Diet: Certain foods, such as asparagus or foods high in beta-carotene, can affect the color of semen. Additionally, supplements or medications may also play a role.

2. Dehydration: Concentrated semen due to dehydration can appear darker or more yellowish. Ensuring adequate hydration can help maintain normal semen color.

3. Infections: While infections are a possibility, they are not the only cause. If there are no accompanying symptoms of infection, it may not be a cause for immediate concern.

4. Sexually Transmitted Infections (STIs): Some STIs, such as chlamydia or gonorrhea, can lead to changes in semen color and consistency. If there is a possibility of exposure to STIs, testing is advisable.

If you are experiencing yellowish or greenish semen, it is crucial to consult a healthcare professional for a thorough evaluation. A doctor may recommend tests such as a urinalysis, semen analysis, or cultures to determine the underlying cause of the discoloration.
In summary, while yellowish or greenish semen can be a sign of a urinary tract infection or other health issues, it is not definitive on its own. A comprehensive assessment by a healthcare provider is necessary to determine the cause and appropriate treatment if needed. If you have any additional symptoms or concerns, seeking medical advice promptly is the best course of action.

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