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