Prostate cancer is the most common cancer in the UK.
The prostate is a small gland in the pelvis and is part of the male reproductive system. It is located below the bladder and just in front of your back passage (rectum). Urine from the bladder passes through the centre of the prostate and along the water pipe (urethra) to leave the body at the end of the penis.
Its main function is to produce some of the fluid that is involved in fertility.
When the cancer is found early and confined to the prostate it often causes no symptoms and can only be detected by testing.