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What is a menstrual period?

1 min read

A menstrual period is a reflection of hormonal activity in the ovaries, specifically the production of estrogen and progesterone, and how the uterus responds to these hormones.

Each cycle, the uterine lining (endometrium) thickens in preparation for a potential pregnancy. This lining is meant to support the implantation of an embryo. If no implantation occurs, the top layer of the endometrium sheds and is expelled, resulting in menstruation.

General information, not a diagnosis: talk to your doctor about your own situation.

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Written by

  • Prof. Arash Rafii

    Professor of Obstetrics, Gynecology and Genetic Medicine

    Sidra Hospital

  • Prof. Michaël Grynberg

    Professor of Reproductive Medicine, Obstetrics and Gynecology

    Antoine Béclère and Jean Verdier University Hospitals

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