All content within this page has been reviewed and endorsed by
Dr Tariq Miskry, Consultant Gynaecologist & Obstetrician
Menstruation can be a mysterious thing. But it’s really quite amazing! That’s why we’ve put together a short list of fascinating facts. Read on and get a whole new appreciation for your monthly periods.
The word "menstruation" comes from menses, the Latin word for "month". That gives you a big clue to what it’s all about. Or if you’ve heard friends talk about "that time of the month," you can probably guess that women go through menstruation about every month.
A menstrual cycle is the time between the first day of one period and the first day of your next period. The amount of time it takes for menstruation to happen is about a month (the average cycle lasts 28 days). One complete cycle is made up of several phases.
You are born with all the eggs you’ll ever have! Over your lifetime, you will release about 500 mature eggs. The number of eggs that you have depends on your age. The number is actually highest before you are born!
What do you find fascinating about a woman’s reproductive organs? (There’s always the fact that we can create life!)
Here’s how it happens. When you were a 20-week-old female foetus (still in your mother’s womb), you had approximately 7 million eggs. At birth, the number decreased to about 2 million. By the time you enter puberty, you have between 300,000 and 500,000 eggs. Only between 400 and 500 will ripen into mature eggs during your life.