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Not 100% Effective

Not 100% Effective

Not 100% Effective

There is no form of birth control that is actually 100% effective because even when you have a procedure like a permanent sterilization, there is still a risk of pregnancy because you still have a uterus and you still have sperm that can actually fertilize an egg. Although this is very rare, as most sterilizations are 99% effective - this is why we never say 100%.

Doctor Profile

Gayle Dean, MD


  • Board Certified by the American Board of Obstetricians and Gynecologists
  • Fellow, American Congress of Obstetricians and Gynecologists
  • Recipient of the “Respect” Physician Award – Tucson Medical Center

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