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Hormonal and follicular changes in the preovulatory phase.
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Hormonal and follicular changes in the preovulatory phase.

The pre-ovulatory period is the phase of the menstrual cycle in which follicular development occurs that will lead to an ovarian follicle becoming the so-called dominant follicle. This dominant follicle contains the oocyte that will be released into the fallopian tubes with ovulation.

The increase in estrogen levels at the end of this phase, although an increase in progesterone has also been proposed, will result in the LH hormone spike that will trigger ovulation.

By (gynecologist), (gynecologist), (embryologist) and (psychologist).
Last Update: 01/18/2022