In general, patients are required to have intercourse one month after abortion, mainly to prevent patients from having intercourse within a short period of time to cause infection or cause an unwanted pregnancy, which may cause damage to the patient’s body. If the patient has intercourse less than a month after miscarriage, the following two aspects should be noted: First, observe whether there are abnormalities in the leucorrhea and abdominal pain and discomfort. If there are no such special conditions it proves that the patient’s intercourse has not caused infection and generally has no great impact on the patient’s body. Second, to observe how long the patient has to menstruate. If the patient has not had a menstrual period after the abortion, it is necessary to do an ultrasound or check the blood chorionic gonadotropin and progesterone to observe the thickness of the endometrium of the patient and to observe whether the patient has an unwanted pregnancy. If the patient does not have an unplanned pregnancy and the patient does not have a normal menstrual flow, it should be considered that the endometrial damage or adhesion caused by the miscarriage is the cause, then this intercourse will have no effect.