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 | Christopher G. Wood, MD, FACS - Urology, Oncology |
| Last Revised | January 6, 2010 |
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