The American Society of Reproductive Medicine suggests that a “normal” period lasts between 2-7 days.
More or less than this, or any bleeding between periods should be mentioned to your doctor.
You can keep track of the heaviness of your menstrual flow and the duration as well as any intermenstrual bleeding or spotting in Free Menstrual Calendar. It's really great to be able to tell your doctor exactly how many days you have your period and the heaviness of the flow when you consult about menstrual cycle issues!
Free Menstrual Calendar color-codes your period flow data on your calendar so you can see at a glance when your period is light, medium or heavy.More Questions