Normal Periods

The Menstrual Cycle

A menstrual cycle begins with the first day of your period and ends with the first day of your next period. The average length is 29 days, although they may last as long as 21-25 days. Your cycle may vary by a day or two from one month to the next.

Average Flow

The average amount of blood loss is 30cc per period. It is usually heavier towards the beginning of your period and lighter towards the end.

Length of Menses (period)

2-8 days, on average, although it may vary.

Menstruation A link to an excellent website for more information