When threatened miscarriage occurs, it is necessary to use medications to sustain the pregnancy. Commonly used medications include the following types: The first type is progesterone medications, which have the effects of stabilizing the uterus and suppressing the immune system; the second type is estrogen medications, which can promote the proliferation of the endometrium, providing a favorable environment for the implantation and growth of the gestational sac; third, traditional Chinese medicine formulations, which also have the effects of stabilizing the uterus, promoting the development of the gestational sac, and reducing bleeding. In addition, it is necessary to conduct examinations based on the symptoms of threatened miscarriage to determine if there are any abnormalities in coagulation indicators. If the threatened miscarriage is caused by abnormal coagulation indicators, anticoagulant medications can be used for treatment.