Sperm in urine is an uncommon problem, but it can be caused by both prostatitis and retrograde ejaculation. Both of these conditions can typically be treated, although they may cause discomfort or pain in the meantime. Sometimes it is hard to notice and diagnose semen in the urine since it is not a common issue, especially amongst young men.

One potential cause of sperm in urine is prostatitis. This is swelling or inflammation of the prostate gland, which helps in the manufacturing of semen. Certain medical conditions may lead to long-term and severe swelling of the prostate. During urination, the bladder contracts and bumps up against the swollen gland. This can cause a small amount of semen to be released at the same time as urine, or shortly after. Urine may appear cloudy if enough semen is present.

This swelling of the prostate gland can also occur if men fail to ejaculate often enough. Although this may take a while to occur, men who become aroused and fail to either engage in sexual intercourse or masturbation in order to achieve orgasm may have excess semen stored in the prostate gland. This is typically not a serious condition and is not considered full-blown prostatitis. The cure in this case is typically ejaculation.

In the former case, sperm in urine should be evaluated by a doctor. There are various forms of treatment for an inflamed prostate, although it may depend on the underlying cause. Serious medical conditions such as prostate cancer may need to be ruled out. Medications may be given to reduce swelling. If any other sexually related symptoms are present, these symptoms may also be investigated further.

Another condition which may cause sperm in urine is retrograde ejaculation. This is a condition in which semen moves backwards through the urethra into the bladder rather than out of the body. It is caused by a lack of bladder contractions which normally take place during ejaculation to keep urine and semen separate. Urine will often appear clouded after sex in men with this condition.

There are few treatments for retrograde ejaculation. Certain medications can be given to close off the bladder to prevent sperm in urine from occurring during ejaculation, but these are not always effective. Surgery can also be performed but this is not generally recommended because it is ineffective in most men. Having sex with a full bladder can help keep it from happening, but it may also make sex less enjoyable.