The process of natural expulsion after fetal arrest is that the chorionic villi and meconium are stripped from the uterine wall, and the stripped embryo and blood stimulate the uterus to contract, the uterus squeezes the embryo during contraction, and the embryo is expelled from the body under the pressure. The embryo may be discharged from the body by itself after the cessation of fetal development, or it may stay in the uterine cavity for a long time, the embryo is completely discharged within two weeks without special treatment, the embryo is in the uterine cavity for more than four weeks without timely treatment, coagulation dysfunction may occur triggering hemorrhage, once diagnosed with cessation of development of the embryo, it is necessary to induced abortion surgery as soon as possible to deal with it. After the embryo stops developing, the bottom meconium where the embryo is embedded will bleed and separate from the uterine wall, and the surrounding uterine meconium will be necrotic and fall off, and the separated embryo and shed uterine meconium will stimulate the uterus to contract, so that the pregnancy will be discharged out of the body. Incomplete abortion or 䅲 retained abortion after fetal termination, have to go to the hospital to deal with through the purging surgery, can not keep delaying time to ignore. You should go to the hospital to check the cause of the abortion, and then deal with the cause of the abortion.