Comment by aaffttoonn

Thanks for digging in! We share exactly where the science is and what these tests can and cannot tell you. We can't count the exact number of eggs, and we do report in buckets which are impactful and have clinical utility. One of the hormones we measure is AMH which is a well validated proxy of ovarian reserve. There is a lot of literature on AMH but Hansen et.al.2011 is one of my favorites- they counted the number of eggs (primordial follicles to be specific) in the ovaries of women who were already having their ovaries removed for other medical reasons and found the their AMH levels strongly correlated with follicle count.