What Is The Postate Gland For?

It has several functions inside male mammalian bodies.  In humans, the postrate has two functions associated with reproduction.  It produces about 20% of the seminal fluid (non sperm content) in semen.  Seminal fluid (in humans) contains various enzymes, antigens, zinc and citiric acid: these all serve to help with the mobility of sperm, and to prolong sperm life post ejaculation.  Seminal fluid from the postrate is mixed with semen on demand, at the moment of ejaculation.  Semen is not produced in men who have had the prostrate entirely removed.

The prostate gland also has some smooth muscle, that helps propel semen out during ejaculation.

The postrate also plays a part in controlling the flow of urine.  Smooth muscles fibres from the postate wrap around the urethra within upstream from the penis.  The same smooth muscle tissues in the prostate that help speed ejaculation, also help keep urine flow steady and outwards.

One in four men will have some trouble in their lifetime with the prostrate gland.  Usually this is related to flow of urine, but in some cases it may  turn cancerous.  Infertility usually results in men after treatment for prostate cancer.  Removal of the postrate is associated with increased risk of incontinence and impotence.