Anti-Mullerian hormone (AMH) is a hormone secreted by the cells of the developing antral and pre-antral follicles (also called primordial follicles) in the ovaries. These small, dormant follicles secrete this anti-mullerian hormone whereas developing follicles over 8mm do not secrete this. It is a strong indicator of a woman’s ovarian reserve, or remaining egg supply. With increasing female age, the size of their ovarian reserve decreases. AMH blood levels over 4.0 often indicate PCOS. My level was 4.78 and the testing was performed at a lab across the country in California.