After spontaneous abortion, the embryonic tissue may be expelled on its own. If it is not expelled cleanly, it can be expelled through oral medication or uterus removal surgery. After spontaneous abortion, as the level of progesterone decreases, the uterus will contract on its own to expel the embryonic tissues from the body. When there is a significant decrease in the vaginal discharge, you can go to the hospital for an ultrasound to confirm whether the discharge is clean. Most women are able to expel the tissue on their own. If there is any tissue left, further treatment will be carried out. If there is less residual tissue in the uterine cavity, you can take oral misoprostol under the instruction of the doctor to stimulate contractions and promote tissue expulsion. If there is more residual tissue, more than vaginal bleeding or failure of medical abortion, the uterus should be cleared immediately to remove the residual tissue completely. Therefore, patients should listen to the professional doctor’s advice and choose the appropriate treatment method after ultrasound examination in the hospital.