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Where did all my eggs go?

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Where did all my eggs go?


Key Milestones and Decline:
At Birth: Around 1 to 2 million eggs are present.
At Puberty: By the time of puberty, about 300,000 to 500,000 follicles remain. This significant reduction is due to a process called atresia, where many follicles naturally degenerate and are reabsorbed by the body.
During Reproductive Years:
Each menstrual cycle involves the recruitment of several follicles, but usually, only one matures and ovulates. The rest undergo atresia.
On average, a woman will ovulate about 300 to 400 eggs over her lifetime.
By Age 30: The number of follicles drops significantly to about 25,000.
By Age 37: The decline becomes even more rapid, with around 1,000 to 10,000 follicles remaining.
By Menopause: Only a few hundred nonviable follicles remain.
Factors Influencing Egg Decline:
Age: The most significant factor.
Lifestyle and Environment: Smoking, exposure to toxins, and certain medical conditions can accelerate follicle loss.
Genetics: Family history can play a role in determining ovarian reserve and the onset of menopause.
The quality of eggs also declines with age, particularly after the mid-30s, which contributes to decreased fertility and increased risks of chromosomal abnormalities in pregnancies

Dr. Dawn Mandeville MD, FACOG, MSCP

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