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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.
a benign enlargement of the prostate gland, creating pressure on the upper part of the urethra or neck of the bladder, causing obstruction to the flow of urine. -Common in men over age of 50. -Symptoms: difficulty starting urination, a weak stream of urine, inability to empty the.