Variations in Menstrual Periods

Often we think of periods as occurring once per month; in fact, the word “menstruation” is from the Latin word mensis, for “month.” While some of us do have periods that occur exactly every month, others have cycles that are longer or shorter. Counting from the first day of one period to the first day of the next, most cycles last between 23 and 36 days. For some, the variation can be even broader.

You may have consistently regular cycles (bleeding every 28 or 35 days, … More