In case of spontaneous abortion in early pregnancy, the process is as follows: 1. pain in the lower abdomen, followed by vaginal bleeding. The contraction of the uterus increases with the pain in the lower abdomen, causing the opening of the uterine orifice, which leads to the rupture of capillaries and bleeding. 2. With the further strengthening of the contraction of the uterus, the opening of the uterine orifice opens further and the pregnancy products are excluded from the uterine cavity, which can be seen with the naked eye and are similar to rotten flesh. It is advisable to take this tissue to the hospital for pathological examination after it has been excluded.3. The reduction of vaginal bleeding indicates that the pregnancy products have basically been expelled, so go to the hospital for an ultrasound examination 10 days after the spontaneous abortion to find out if there are any residual tissues in the uterus.