Did you know estrogen dominance is a very common problem in American women today. If you have conditions such as autoimmunity, cervical dysplasia, breast tenderness or fibrous cystic breast disease, maybe had a history of breast cancer, endometrial thickening, or endometrial cancer, endometriosis, infertility, osteoporosis, polycystic ovary syndrome, PMS, low thyroid uterine fibroids, you may have what's called estrogen dominance.