Generally speaking, rectal cancer patients can have sex, but they need to prohibit sex for a short period of time after operation. There is no contraindication of sexual life for rectal cancer patients except short-term prohibition of sexual life after surgery. If the patient’s condition is stable, physical strength is recovered well, and there is desire for sexual life in his heart, it is possible to resume appropriate and regular sexual life. But if it is a short period of time after the operation can not have sex, so as to avoid wound tearing caused by infection, at this time the general recommendation is to ban coitus for about 3 months. At the same time, we should pay attention to a balanced diet, after the return to normal diet, try to choose light, easy to chew food, and ensure that the protein, vitamins and other nutrients intake, is conducive to the body’s recovery.