Question

what is period when it occur

Answer 1

Then, hormone levels drop, and the thickened lining of the uterus is shed during the menstrual period. Day 1 starts with the first day of your period.

This occurs after hormone levels drop at the end of the previous cycle, signaling blood and tissues lining the uterus (womb) to break down and shed from the body.

Answer 2

Every month or so, the uterus lining gets thicker to prepare for a fertilized egg if the woman becomes pregnant. If the egg doesn't get fertilized, that lining is released from the body as blood through the vagina. This monthly process is called menstruation or a period.

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