Prostate Cancer

A small gland in the male reproductive system called the prostate makes the fluid that carries and nourishes sperm. This gland, which is about the size of a walnut, can develop cancer when some of its cells grow abnormally. Prostate cancer is among the most common cancers in men.

Signs and Symptoms

Early-stage prostate cancer usually causes no symptoms. More advanced prostate cancer might cause:

Difficulty urinating or decreased force in the stream of urine
Blood in the urine or semen
Bone pain
Erectile dysfunction

Clinical Progression

Prostate cancer can grow slowly or aggressively. Aggressive types can spread quickly to other organs.