It is forbidden to have intercourse within one week after the abortion because at this time the uterine opening is open and there may still be a small amount of blood secretion from the vagina. The dilatation of the uterus during abortion can easily cause bacterial invasion, and endometritis and pelvic inflammatory disease can easily occur, so it is not recommended to have intercourse at this time. Some patients may stimulate uterine contractions after intercourse, and there may still be a small amount of blood in the uterine cavity, which is discharged into the vagina along the open cervix, resulting in a small amount of vaginal discharge. It is recommended to go to the hospital for ultrasound examination first to find out whether there is any residue or fluid accumulation in the uterine cavity. Some patients resume ovulation soon after abortion, and need to take contraceptive measures to prevent another unwanted pregnancy, and also need to prevent infection to avoid endometritis or pelvic inflammatory disease.