Excessive estrogen can arise from an imbalance between natural and synthetic estrogens. Natural estrogens (e.g., estrogen) and synthetic estrogens (e.g., xenoestrogens and phytoestrogens) can disrupt hormonal balance. Reproductive health conditions such as PCOS, endometriosis, and uterine fibroids are linked to hormonal imbalances. Environmental factors like pesticides and pollution, as well as lifestyle choices like soy consumption and stress, can contribute to elevated estrogen levels.