The difference between miscarriage and miscarriage is that clinically, miscarriage refers to three or more consecutive spontaneous abortions, while miscarriage refers to a single miscarriage. The most common causes of miscarriage in clinical practice are: the first one is caused by the genetic deficiency of the embryo. The second, because the pregnant woman herself suffers from certain serious diseases, or in the case of uterine developmental malformations, endocrine disorders, or trauma, can lead to miscarriage in clinical practice. In clinical terms, habitual miscarriage often refers to the occurrence of three or more consecutive miscarriages in the same month, often due to luteal insufficiency, hypothyroidism, chromosomal abnormalities or cervical dysplasia, it is recommended to give the necessary examination and then give treatment.