Gynecologic disorders are conditions that affect the female reproductive organs, including the uterus, ovaries, fallopian tubes, vagina, and vulva. As part of Women’s Health Month, this report describes the incidence and burden of four commonly occur-ring gynecologic disorders (menorrhagia, polycystic ovary syndrome (PCOS), uterine fibroids, and endometriosis) among active component service women from 2012 through 2016. This report also documents the number and percentage of women with co-occurring incident diagnoses during the surveillance period.