Patients with colon cancer can have sex, but they have to choose the right time for sex, and the duration of each sex life should not be too long. For early stage colon cancer patients, after radical surgery and postoperative radiotherapy, chemotherapy and other related comprehensive anti-tumor treatments, patients will usually resume normal life in six months after surgery, and appropriate sexual life is conducive to patients’ psychological and physiological recovery. For patients with advanced colon cancer, long-term chemotherapy and targeted anti-tumor treatment is needed. During the treatment period, patients should not have sex as much as possible, but at the end of the treatment when the condition is stabilized, they can have sex appropriately, and the time of sex should not be too long, otherwise it is not conducive to the recovery of the disease. Patients with colon cancer need to go to the hospital in time, and go to the hospital regularly for rechecking after treatment to prevent recurrence and metastasis after operation.