Last Modified Date: November 23, The discoloration in brown sperm or semen is caused by the presence of blood, a condition known as hematospermia. Brown sperm, in particular, is indicative of older blood, as fresh blood tends to add a bright red discoloration to semen. As a guy, you likely have a very good idea of what a normal color for semen is. That is, unless you've had discolored semen for quite some time, in which case you may have forgotten what normal looks like. There are slight variations of normal, but healthy semen is typically a cloudy whitish color.
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. In particular, there are a few medical conditions that can change the color of the semen. One of these is a prostate infection, which tends to give the semen a darker yellowish color. Other symptoms of a prostate infection might include burning or discomfort with urination or with sexual activity.
The semen is produced mainly by the prostate gland. When the prostate contracts at the time of ejaculation, a vein may tear and blood mixes with the semen resulting in a brownish coloured semen which is known as hematospermia. Reddish coloured semen indicates new and dark (brownish) discoloration indicates previous bleeding. it could also be an infection in the prostate. The Mayo clinic says that yellowish/green/gold discoloration is usually related to an infection of the prostate.
The appearance of semen is normally a whitish, cloudy fluid. It's usually quite thick just after ejaculation, but liquefies after about 20 to 30 minutes later. However, sometimes discolored semen is noticed. The changes in the appearance of semen can be a sign of an underlying medical condition that requires further evaluation.