How long can coitus be allowed after radiotherapy for endometrial cancer depends on the patient’s recovery situation and the patient’s physical condition, after chemotherapy, the patient’s physical condition is generally weak, the immune ability of the body is reduced, and infection is easy to occur, so coitus is not allowed in a short time to avoid affecting the recovery of the body, about one week after radiotherapy, the blood routine will be rechecked to see whether it is normal or not, and coitus can be resumed after the body gradually recovers. Endometrial cancer radiotherapy and coitus have certain relationship, because coitus may affect the smooth progress of treatment. However, in general, patients after chemotherapy are physically weak, due to the difference of body, patients with personal physiological needs can resume cohabitation as their physical quality gradually recovers. Patients need to pay attention to the wound healing takes a certain amount of time, should avoid coitus caused unnecessary damage, and at the same time pay attention to not too frequent and strenuous exercise, to ensure that the regular rest and diet, to avoid spicy and stimulating food, for the patient’s recovery have a positive effect.