With spontaneous miscarriage, the probability of a clean miscarriage is usually able to reach 70-80%. Generally speaking, in the early stage of spontaneous abortion, the pregnancy sac will be discharged completely through the form of stomach pain or bleeding. The uterine cavity is already relatively clean when doing ultrasound, if you are sure that it has been discharged cleanly, after the miscarriage, take appropriate drugs to promote uterine contraction, and anti-inflammatory drugs, such as motherwort, biochemical capsules and so on. At the same time, it is also appropriate to use external lotion to maintain the hygiene of the perineum. If the bleeding after the abortion is particularly heavy, it is best to do ultrasound, if you consider that the abortion is not clean, you need to remove the uterus in a timely manner.