Indolent miscarriage is a type of abnormal miscarriage, also known as premature miscarriage. The embryo is already dead at the time of detection, and the dead embryo remains in the uterine cavity for a long time. This condition mainly affects the woman’s blood clotting function, and if the embryo is not expelled for a long time, it can lead to coagulation disorders and DIC, which can increase the risk of postpartum bleeding and infection. Patients with indolent miscarriage are treated in a special way and need to be hospitalized for treatment. The patient’s coagulation function is first understood, and medication for medical abortion is used to soften the embryonic tissue before the hysteroscopic procedure is performed to clear the uterus. Patients who have had a retained miscarriage are more likely to have another one, and after treatment, they need to be examined by the eugenics department.