The prostate is a muscular, walnut-sized gland that surrounds part of the urethra, the tube that transports urine and sperm out of the body. A gland is a group of cells that secretes chemicals that act on or control the activity of other cells or organs.
The prostate is part of the male reproductive system. Its main job is to make seminal fluid, the milky substance that transports sperm.
Sperm is produced in the testicles, which also make the male hormone testosterone. Testosterone stimulates the...
Radiation therapy, also called X-ray therapy, is used to treat cancer cells
only in the treated area. Various techniques are used to deliver this
type of treatment. Find out what to expect in this overview article.