Positive margins after radical prostate cancer surgery can have sex, but it may affect the sex life to some extent. Patients with positive cutting edge after radical prostate cancer surgery are in poorer physical condition than normal people, and their immunity is also lower than normal people, they can have sex, but they should try to reduce the frequency and intensity of sex. Positive cutting edge after radical prostate cancer surgery means that there are still cancer cells left after surgery, and they need to undergo chemotherapy, to avoid spreading of the cancer cells and recurrence. Cancer patients should pay attention to the frequency and times of sex life, keep a good mindset, do not have too much psychological pressure, pay attention to rest, less stay up late, pay attention to nutritional supplementation, eat more fresh fruits and vegetables, develop good living habits and dietary habits, and undergo regular review at a later stage.