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The decrease in the levels of estrogen and progesterone.

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14y ago

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8mo ago

Menstruation is triggered by a drop in estrogen and progesterone levels, which signals the shedding of the uterine lining. This drop in hormone levels occurs when an egg released during ovulation is not fertilized. The decrease in hormone levels causes the blood vessels in the uterus to constrict, leading to the shedding of the uterine lining, resulting in menstruation.

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Q: What triggers menstruation the occur?
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Related questions

What hormonal change triggers the start of menstruation?

The hormonal change that triggers the start of menstruation is an increase in estrogen levels in the body.


At what age does menstruation occur?

Menstruation occur at the age of 9 to 16 years old


Does menstruation occur in the palm?

No.


Is menstruation still occur without having egg released from ovary?

Yes. Menstruation will still occur with out ovulation


Does menstruation occur if the egg is fertilized?

No, menstruation does not occur if the egg is fertilized. Instead, the fertilized egg implants in the uterus to begin pregnancy. If fertilization does not occur, then the uterine lining sheds during menstruation.


Can menstruation occur after implantation?

Yes!


When does menstruation typically occur in relation to ovulation?

Menstruation typically occurs about 14 days after ovulation.


Does menstruction occur?

No, menstruation occurs in individuals who have a uterus and typically identifies as female. Men do not experience menstruation.


What does menstruation occur?

on average every 28 days


Which days during the menstrual cycle does menstruation menses occur?

Menstruation, or menses, typically occurs during the first few days of the menstrual cycle. This is when the uterine lining sheds if pregnancy does not occur.


Do women menstruate even when they are pregnant?

Yes, Menstruation can also occur while pregnant, unless if she has menstruation disabilities.


Does ovulation occur from 14th day until menstruation?

of course not, menstruation occurs on the 14th day not the ovulation, and I say that the start of the menstrual cycle is actually menstruation.