What is the Prostate?

The prostate is part of the male reproductive system.   It is a walnut-sized gland that is located just below the bladder, at the base of the penis.  The prostate surrounds the urethra – the tube that carries urine from the bladder our through the penis.  Its main function is to produce the fluid that carries sperm when a man ejaculates.

Cross-section of the male reproductive, and urinary system