Every woman has all the eggs that they're ever going to have at the time of birth. At the time of puberty, they have about 200,000 follicles. Follicles are small fluid-filled collections that we can see on ultrasound within the ovary that all have the potential to become eggs. Every month women generally release a single egg and every other follicle that had the potential to become an egg is absorbed and lost by the body never to be regained again.
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