Article continues below advertisementEndometriosis involves the abnormal growth of tissue in and around the uterus and stands as one of the top causes of infertility among women. Affecting as many as 1 in 10 women, according to UCLA Health, this condition can take years to diagnose, leaving many to discover it in their 30s or 40s.Article continues below advertisementDespite the stigma surrounding reproductive health, advocates like Olivia Culpo and Julianne Hough refuse to stay silent about their struggles.Scroll down to learn more about other inspiring women fighting endometriosis.