Why does the prostate gland cause problems?
If the prostate gland becomes enlarged, it can interfere with the flow of urine. The prostate gland wraps around the urethra, the tube that carries urine from the bladder to the tip of the penis. As the prostate enlarges, it causes a gradual squeezing of the part of the urethra that runs through it, and this may cause difficulty urinating. The enlargement of the prostate gland is called benign prostatic hyperplasia, or BPH.
