External Beam Radiation Therapy (EBRT) is an effective, non-invasive treatment option for low-risk prostate cancer, though it’s generally considered second-line after active surveillance. It uses high-energy X-rays to target and destroy prostate cancer cells over several weeks of outpatient sessions.

EBRT offers similar cancer control rates to surgery but may cause side effects like urinary irritation, bowel changes, and erectile dysfunction. It’s typically chosen by patients who prefer definitive treatment but want to avoid surgery, or who are not good surgical candidates due to age or health conditions.