Why does amenorrhea (absence of menstruation) sometimes occur in the luteal phase, despite normal estrogen levels earlier in the cycle?

💡 Explanation

Amenorrhea can result from inadequate progesterone levels during the luteal phase because progesterone is crucial for maintaining the uterine lining to support implantation and menstruation. Therefore, if progesterone fails to rise adequately, the endometrium doesn't develop properly, rather than menstruation occurring due to other hormonal imbalances.

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