
The prostate gland is a small, walnut-shaped organ that lies just below a man's bladder. It surrounds the urethra, the tube that carries urine from the bladder out of the body through the penis.
The prostate gland produces most of the fluid in semen.
| By | Healthwise Staff |
| Primary Medical Reviewer | E. Gregory Thompson, MD - Internal Medicine |
| Specialist Medical Reviewer | J. Curtis Nickel, MD, FRCSC - Urology |
| Last Revised | December 3, 2011 |