According to relevant research, in Tianjin, there are more cases of miscarriage during the winter heating period. Therefore, Director Chen suggested that some women who have experienced spontaneous abortion or termination of embryonic development, and the specific reasons have not yet been identified, should not choose to conceive in winter. Instead, they can choose to conceive in summer or autumn during non-festival periods. -Heating period. In addition, how to reduce the incidence of miscarriage? If habitual miscarriage occurs, both couples should undergo a comprehensive physical examination, especially a genetic examination. Advances in genetics will be a boon to couples suffering from habitual miscarriage. Only by finding out the causes of habitual abortion and targeting