Usually, patients have a spontaneous abortion, which can be completed in about 7 days. If the process of spontaneous abortion is accompanied by the presence of organic endometrium or a lot of residues in the uterine cavity, which can affect the contraction of the uterus, the time of spontaneous abortion will be prolonged, and in severe cases, the uterus may need to be cleared again for treatment. Spontaneous abortion means that the embryonic tissue in the uterine cavity does not grow with the prolongation of the days of menopause and that there is never a fetal heart, mostly due to the death of the embryo due to the poor quality of the fertilized egg or the presence of fibroids in the uterine cavity, deformation and compression of the uterine cavity, or infection of the uterine cavity. Patients need to expel the material of spontaneous abortion as soon as possible. If there is always a foreign body in the uterine cavity, it can easily lead to uterine cavity infection, and in serious cases, it can lead to menstrual disorders affecting another pregnancy. In addition, patients need to go to the hospital for gynecological ultrasound and blood tests for chorionic gonadotropin and progesterone levels after a spontaneous abortion to provide timely and symptomatic treatment.