Feminax
Experts in period pain
Bayer Healthcare
About periods
Having a period - or menstruation - is the body's way of getting rid of the lining that builds up on the wall of the womb (uterus) every month. The reason the wall gets thicker is to cushion and nourish a fertilised egg as it develops into a baby. So if the egg isn't fertilised, the extra lining isn't needed.
Most women start their periods when they reach puberty, usually in their early teens, and have one a month (except during pregnancy) until their late 40s or early 50s when they go through the menopause. But these are only averages. Some girls start their periods as early as 8 or as late as 17. And as for the menopause, this is even less predictable.
Period Predictor
Use our Period Predictor to find out the likely start dates of your periods for the next 12 months
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