Intrauterine residuals may occur after normal delivery or abortion. If there is residual active chorionic tissue, it usually results in a high HCG value, so an HCG value test can be done to make a preliminary diagnosis of the presence of intrauterine residuals. A woman’s HCG increases significantly after pregnancy. HCG decreases rapidly after the embryo is expelled from the body and usually returns to normal levels within 4 weeks. If intrauterine residuals are present due to incomplete expulsion and the residual tissue is still biologically active, HCG may fall more slowly in this case and will not reach normal levels within 4 weeks. However, it should be noted that if the residual tissue is not biologically active, the HCG may also be normal and therefore needs to be reviewed regularly after delivery. HCG values need to be monitored after normal delivery or abortion. If there is a slow decrease or abnormal increase in HCG values, ultrasound should be performed promptly to confirm whether intrauterine residues are present. There are several ways to discharge the residues in the uterine cavity: 1) medication: oral administration of mifepristone, motherwort capsules, etc., as prescribed by the doctor, to discharge the residues in the uterine cavity; 2) surgery: if it is difficult to discharge the residues in the uterine cavity through medication, you can follow the doctor’s advice to perform a curettage, and the cleared tissues should be subjected to pathological examination, and the necessary treatment such as promotion of uterine contraction should be given after the surgery.