3 doctors weighed in:
What is a normal menstruation cycle?
3 doctors weighed in

Dr. Hector Chapa
Obstetrics & Gynecology
2 doctors agree
In brief: Varies.
The menstrual cycle is from day 1 of bleeding to day 1 of the next time of bleeding.
Although the average cycle is 28 days, it is normal to have a cycle that is shorter or longer. More frequent than every 21 days is too much, and later than every 35 days is too few. Normal menses lasts 5-7 days. Any bleeding that is heavy abd bothersome to a patient may need evaluation.

In brief: Varies.
The menstrual cycle is from day 1 of bleeding to day 1 of the next time of bleeding.
Although the average cycle is 28 days, it is normal to have a cycle that is shorter or longer. More frequent than every 21 days is too much, and later than every 35 days is too few. Normal menses lasts 5-7 days. Any bleeding that is heavy abd bothersome to a patient may need evaluation.
Dr. Hector Chapa
Dr. Hector Chapa
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