There are many reasons for hemorrhage in early pregnancy, the main reasons are the following three aspects. The first is that patients in early pregnancy miscarry when the uterus contraction weakness and cause hemorrhage, in the miscarriage will be accompanied by uterine contraction, uterine contraction can compress the blood vessels and play a role in stopping bleeding, uterine contraction weakness easily appear hemorrhage. Second, consider that the patient may have abnormal coagulation function or other medical diseases, resulting in abnormal coagulation factors, causing hemorrhage, and check the blood routine, combined with other clinical symptoms, signs and examinations to determine the cause, and if necessary, blood transfusion is needed. Third, consider that the hemorrhage may be caused by vaginal or cervical lesions, for example, the patient has vaginal polyps or ruptured cervical polyps, cervical tumor lesions, etc. If these lesions have mass rupture, hemorrhage can also occur.