01/02/2026
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Ovulation is the violent rupture of a follicular cyst that results in a single egg being released.
Many report being able to feel this event as a twinge or a sharp pain. Germans have a term for it, Mittelschmerz or middle pain.
This process leaves a wound (pictured) on the ovarian surface which gradually transforms into a structure known as the corpus luteum.
This specialized structure produces progesterone (pro gestational hormones) that keeps the endometrial layer of the uterus prepared for implantation.
The corpus luteum lends its name to the luteal phase of the ovarian cycle and is thiught to be involved in many of the symptoms of PMS and PMDD.
