PSA plays a variety of roles, the most familiar being screening to detect prostate cancer at an early stage. PSA also helps to define the Stages of Blue. Another role of PSA is to detect cancer relapse after surgery or radiation. Lastly, rises or declines in PSA after hormone therapy or chemotherapy help determine whether a treatment is working...

Erectile dysfunction (ED) is a risk with every type of treatment for prostate cancer, but the exact risk is very specific to each patient. The better a man’s erections are before prostate cancer treatment, the better chance he has of preserving function...