If residue is found in the uterine cavity after delivery, most of it is fetal membrane tissue or placental tissue, or muscular fetal membrane tissue and also placental tissue. It should be checked to see how much residue there is. If there is only a small amount of residue, you can take oral motherwort capsules or Wujia biochemical capsules to expel the residual tissue by activating blood circulation and removing blood stasis. If residues are found in the uterus with heavy vaginal bleeding, it is recommended to give timely operation to remove the uterus even though the residues are small. If the residue is relatively large, a curettage operation can remove the residue and avoid infection caused by the residue in the uterine cavity, so a curettage operation should be done in time.