MOOC Advertisement

Learn More:
Get An Introduction to Reproduction

Learn more about the the science of reproduction. Dr. Teresa Woodruff, creator of Repropedia, is offering a free online course exploring the world of reproduction.

Get Started!


Atresia, with regard to ovarian follicles, is the degeneration of follicles after they have formed (but before they have fully matured) through hormonally regulated apoptosis. Atresia may occur at any follicular stage of the menstrual cycle but seems to be more frequent at the primordial and late secondary stages before puberty and at the late secondary stage during adult cycling.