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Dr. Su S
Dr. Su S, Doctor(MD)
Category: OB GYN
Satisfied Customers: 24331
Experience:  Experienced in maternity and women's health
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Is a 21 day cycle not normal

This answer was rated:

Is a 21 day cycle not normal

Thank you for your question.
I will try my best to help you.
I will answer in a moment or request for further information.

I understand your concern.
Normal menstrual cycle varies from 21 days to 35 days.
So 21 day cycle can be normal.
I hope this information will be helpful.
If you have any query, please feel free to ask.
Your satisfaction is my goal.
If you are happy with my answer please click on 5 star rating so that I can get the credit for helping you.
Wish her healthy life.

Customer: replied 11 days ago.
Can it fluctuate? 21-23 days?

Yes, it can.

It is normal.

Dr. Su S and other OB GYN Specialists are ready to help you