Why does a menstrual period happen only once per month?

Answered by 1 Apollo Doctors

Dr Mubarak Parveez B

General Practitioner

MBBS
2+ Yrs

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The menstrual cycle is the monthly series of changes a woman's body goes through in preparation for the possibility of pregnancy. Each month, one of the ovaries releases an egg - a process called ovulation. At the same time, hormonal changes prepare the uterus for pregnancy. If ovulation takes place and the egg isn't fertilized, the lining of the uterus sheds through the vagina. This is a menstrual period.

Dr. Mubarak Suggests...

Consult a Obstetrician and Gynaecologist

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Answered 04/07/2025

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I'm wondering about a follicle size that's 30x30mm with a small amount of free fluid on the 16th day does that mean it's a follicle or could it be a cyst? I've been on CCQ medication, and my periods have always been regular, so I haven't had PCOD or cyst issues before. Has anyone had a similar experience and conceived successfully with these numbers?

-A 30x30mm follicle size on day 16 is quite large, but it could still be a mature follicle ready to ovulate, especially with minimal free fluid. It's unlikely to be a cyst unless it's irregular in shape or causing symptoms. Since you're on CCQ medication

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I'm a bit worried because I had sex with two different people at different times, and neither time we used condoms. Could this lead to any problems, even if it's not something I do regularly?

Yes always you use barriers as you are unaware of partner's health status .

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What is Fibroid?

localised myometrial and connectivetissue growth

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Disclaimer: Answers on Apollo 247 are not intended to replace your doctor advice. Always seek help of a professional doctor in case of an medical emergency or ailment.