How much does menstruation bleed in advance

The physiological period in advance, the phenomenon of more blood, if the physiological period is not more than a week in advance, bleeding does not exceed 80 ml, then it is a normal phenomenon. It is recommended that you need to do a good job of private health care in the near future. If the amount of bleeding is too much, you can go to the hospital for testing. If it is due to pregnancy caused by threatened abortion, you need timely treatment.