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Enlarged Prostate Symptoms and Causes. In men, urine flows from the bladder through the urethra. BPH is a benign (noncancerous) enlargement of the prostate that blocks the flow of urine through the urethra. The prostate cells gradually multiply, creating an enlargement that puts pressure on the urethra -- the chute through which urine and semen exit the body.
White cloudy urine in men may be caused by the presence of semen in the urine. This milky colored urine in males commonly occurs after an ejaculation. Cloudy urine may also occur after drinking alcohol. A darkish appearance to the urine may signify a problem with the liver such as cirrhosis or acute viral hepatitis.