If you have intercourse half a month after miscarriage, you may have no abnormal symptoms depending on your physical condition, or you may have increased uterine damage, infection, secondary infertility, etc. The endometrium and uterine body will be damaged after miscarriage and need to be repaired for a period of time, usually about 1 month, so try to avoid sexual intercourse within 1 month. If the patient has intercourse half a month after miscarriage, at this time, the patient recovers faster and has no more discomfort symptoms, no vaginal bleeding, abdominal pain, fever and so on after intercourse, there may be no effect. However, if the patient’s recovery is poor, even with fever, vaginal bleeding and other symptoms, intercourse at this time may aggravate the damage to the uterus and even cause infection, leading to vaginitis, cervicitis, pelvic inflammatory disease, endometritis and so on, which can seriously cause permanent damage to the endometrium, and the patient may be infertility for life. In addition, some miscarriage patients may ovulate half a month later, and if they have intercourse at this time without proper safety measures, it may lead to another pregnancy. If there is no need for fertility, the woman will need to have another abortion, which can be physically and psychologically damaging. Therefore, after a miscarriage, it is important to wait until the body recovers before having intercourse and to take safety measures during intercourse.