Prostate cancer is a general term used to describe a common malignant tumor, almost of glandular origin (adenocarcinoma), in the prostate gland. The prostate gland is a specific organ in males containing cells that make some of the seminal fluid. This gland locates below the bladder, in front of the rectum and it develops continuously since the fetal life under the stimulation of male hormones (androgen). As a man becomes older, the part of the prostate around the urethra often keeps on growing causing benign prostatic hyperplasia (BPH) which can result in problems with urinating. However, BPH may develop later leading to malignant neoplasm (prostate cancer).