A cancer in a man's prostate, a small walnut-sized gland that produces seminal fluid.
A man's prostate produces the seminal fluid that nourishes and transports sperm.
Symptoms include difficulty with urination, but sometimes there are no symptoms at all.
Some types of prostate cancer grow slowly. In some of these cases, monitoring is recommended. Other types are aggressive and require radiation, surgery, hormone therapy, chemotherapy or other treatments.