Prostate cancer is the chronic disease of the prostate, a small walnut-shaped gland in men. Prostate produces the seminal fluid that nourishes and transports sperms. It is found in the pelvis below the bladder. Prostate cancer type is one of the most commonly occurring cancers in men. This is slow-growing cancer and the third leading cause of cancer deaths in men. The prostate gland produces some of the fluid in semen and plays a role in urine control too.