How many sanitary pads are normal to use during a menstrual period?

Patient's question:

No

Doctor's answer:

Menstruation for 3-7 days, menstrual volume of 20-80ml, and a menstrual cycle of 22-35 days are normal. If a woman uses more than 15 sanitary pads in one menstrual cycle, it is considered excessive menstrual flow and should be taken seriously.