Prostate Cancer is a malignant cancer of the prostate gland. The prostate gland is a gland around the neck of the urinary bladder in men. These glands help to secrete a thin opalescent, slightly alkaline fluid that is a part of seminal fluid. After Skin Cancer, Prostate Cancer is the second most common type of cancer in men. This is mostly adenocarcinoma. The diagnosis in the early stages has better chances of successful treatment.