You should not have intercourse after half a month of miscarriage to avoid increasing the risk of infection. Miscarriage refers to the termination of pregnancy before the 28th week of pregnancy, including spontaneous abortion and artificial abortion. Due to the process of abortion, there will be the process of opening the mouth of the uterus and the operation of the uterine cavity, it is necessary to prohibit tub baths and sexual intercourse for one month after the abortion to avoid increasing the risk of infection, and also to give antibiotics such as metronidazole and other antibiotics to prevent infection treatment according to the doctor’s instructions. After abortion, we should pay attention to appropriate rest, avoid premature exertion and strenuous exercise, pay attention to personal hygiene, keep the vulva clean and dry, and increase diet and nutrition to promote physical recovery. When symptoms such as increased vaginal bleeding and abdominal pain occur, it is necessary to go to the hospital in a timely manner and follow the doctor’s instructions for treatment.