If the vaginal bleeding is as heavy as menstruation, it indicates the possibility of pre-menstrual miscarriage or inevitable miscarriage, it is recommended to go to the hospital as soon as possible to do the appropriate examination, first of all, do an ultrasound examination, if the embryo is still alive, you can lie down to rest, and active treatment to stabilize the fetus. If the embryo is dead and the uterine opening has been opened, it indicates the possibility of inevitable miscarriage. If there is a lot of vaginal bleeding, you can have an emergency removal operation. If there is not much vaginal bleeding, you can continue to observe to see if you can have a spontaneous miscarriage. This occurs if it is early in pregnancy and is often due to genetic defects, mostly due to chromosomal abnormalities. If it is a preterm or inevitable miscarriage in a large month, such as a mid-pregnancy preterm miscarriage, it may be related to factors such as trauma and cervical insufficiency.