The prostate is a chestnut shaped gland surrounding the beginning of the urethra in the male. It varies in size according to the patient’s age. It is located under the bladder, in front of the rectum.

Contrary to a generally accepted idea, the prostate is not directly involved during the sexual act; it does not intervene in the libido’s mechanisms, or in those of the erection. The prostate takes part in the ejaculation mechanism, it secretes the major part of the seminal liquid which is used as a means of transportation of sperm.