What Is the Prostate?
Technically, it’s part of your sex organs. It’s a small gland, about the size of a walnut, that surrounds your urethra, a tube that takes urine from the bladder to the penis. The urethra also carries semen during ejaculation. The prostate gland grows quite a lot during puberty and then doesn’t change much until about age 40, when it slowly begins growing again and, in many men, doesn’t stop. Half of men aren’t bothered by their growing prostate. But the others will develop one of three prostate diseases; enlarged prostate, prostate cancer, or prostatitis, or may have more than one.