Estrogen dominance is a condition in which a woman can have deficient, normal, or excessive levels of estrogen, but has too little progesterone to balance the estrogen level. It means a predominance of estrogenic effect as opposed to progesterone effects. It is the balance of the two that matters more than how much we have. A woman can have a low estrogen but a lower progesterone and be estrogen dominant.
Estrogen and Progesterone work with each other either as opposites or as complementing hormones. Estrogen is a stimulant (anxiety, insomnia, cellular proliferation at breast, uterus etc) and Progesterone is a calmer (patience, sleep, inhibits cell division). They also complement each other (Estrogen decreases bone loss while Progesterone promotes bone growth).
Common symptoms of Estrogen Dominance : Anxiety, irritability, anger, agitation, Cramps, heavy bleeding, prolonged bleeding, clots, Water retention/weight gain, bloating, breast tenderness, lumpiness, enlargement, fibrocystic breasts, mood swings, depression, weepiness, headaches/migraines, food cravings, sweet cravings, chocolate cravings, Muscle pains, joint pains, back pain, acne, foggy thinking, memory difficulties, fat gain, especially in abdomen, hips and thighs, cold hands and feet (i.e., stressed adrenals), blood sugar instability, Insulin Resistance/syndrome X, irregular periods, decrease sex drive, Gall bladder problems, infertility, insomnia, osteoporosis, endometriosis, polycystic ovaries, uterine fibroids, cervical dysplasia (abnormal cells on PAP smear), allergic tendencies, autoimmune disorder, breast-uterine-cervical-ovarian cancer.
Quoted from Source:
http://info.nihadc.com – Estrogen-Dominance