Women with incomplete miscarriage without clearing the uterus will suffer from infertility, infection and bleeding, as follows: First, infertility: the residual tissue of pregnancy will mechanize in the uterine cavity, and the mechanization will adhere closely to the uterine wall, which may cause women’s menstruation to be affected, and may also affect the fertilization of the egg and cause infertility. Second, infection: Incomplete miscarriage without clearing the uterus may lead to prolonged vaginal bleeding, which will increase the chance of infection for women, and once the infection is too heavy, it will lead to endometritis and pelvic inflammatory disease, which is unfavorable to women’s body and may lead to infertility. Third, bleeding: Incomplete miscarriage without clearing the uterus may also lead to repeated intermittent vaginal bleeding, and may easily affect women’s menstruation and endocrine conditions, so it is recommended that women should perform clearing surgery as soon as possible.