Semen is normally a whitish-gray color. Changes in semen color might be temporary and harmless or a sign of an underlying condition that requires further evaluation. Possible causes, by color, include:
- Reddish semen. This could be caused by the inflammation of the prostate or the glands that help produce semen. While red semen can be alarming, the cause is usually benign.
- Yellow or green semen. This could be caused by an infection, jaundice, or the presence of vitamins or medication in the semen.
If semen discoloration is a new sign and it continues for more than a week talk to your doctor or see a urologist.
July 18, 2018
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- McAninch JW, et al., eds. Symptoms of disorders of the genitourinary tract. In: Smith and Tanagho's General Urology. 18th ed. New York, N.Y.: The McGraw-Hill Companies; 2013. https://accessmedicine.mhmedical.com. Accessed July 6, 2018.
- Weiss BD, et al. Hematospermia. https://www.uptodate.com/contents/search. Accessed July 6, 2018.