There is no difference between a subchorionic hematoma, whether it bleeds or doesn’t flow past its own absorption, as long as the quality of the embryo is normal. Subchorionic hematoma is before the formation of the placenta, chorionic membrane and endometrium is not close enough, and ultrasound to see the uterine cavity between the gestational sac and the uterine wall there are a small number of confined liquid dark area, generally hematoma after discharge or self-absorption and other gradual reduction will not affect the outcome of the pregnancy, but some women bleeding gradually increase and lead to miscarriage and other adverse outcomes. For women who are found to have subchorionic hematoma, it is recommended that they go to the gynecology department of regular hospitals and use progesterone, dydrogesterone and other progestin preparations under the guidance of the doctor to protect the fetus, and at the same time, they should pay attention to rest and refrain from doing strenuous exercise, and if abdominal pain or increased vaginal bleeding occurs, they should be vigilant for the occurrence of adverse outcomes such as preterm miscarriage or induced miscarriage.