Whether or not the uterus needs to be cleared if the inside of the uterus is not drained from the cesarean section should be analyzed on a case-by-case basis. Under normal circumstances after the delivery of the fetus by cesarean section, the doctor will help the placenta to be delivered out of the uterus and will clean up the inside of the uterine cavity, most of which do not need to be cleared for treatment. Some women after cesarean section placenta, fetal membranes and other embryonic tissue residues or blood clots are not discharged, if only a small amount of residue or blood, you can take motherwort granules or use uterine contractions to promote uterine contractions, discharge residues, do not need to clear the uterus, the use of specific drugs need to comply with the doctor’s instructions. However, for large residues or when medication cannot expel them, it is necessary to go to the hospital in time to clear the uterus. Most of the cesarean section does not need to clear the uterus, but for the existence of intrauterine residue, and residual tissue > 1cm, the blood supply is rich should be cleared for treatment.