What role does Progesteron play in menopause?

Progesterone plays a nuanced role in menopause, often surrounded by marketing hype. During reproductive years, it is produced by the corpus luteum after ovulation to prepare the endometrium for implantation. In perimenopause, progesterone production becomes erratic and declines, contributing to cycle irregularities, sleep disturbances, mood swings, and water retention. After menopause (12 months without a period), progesterone levels are consistently low. In hormone replacement therapy (HRT), progesterone (or a progestin) is primarily used to protect the endometrium from estrogen-induced hyperplasia – this is the only well-established, evidence-based indication. Some studies suggest progesterone may improve sleep quality and exert anxiolytic effects, but the evidence is limited and not strong enough for routine recommendation. Progesterone testing (e.g., saliva) is not recommended for diagnosing menopause; diagnosis relies on FSH levels and clinical symptoms. MyBody-X offers hormone tests that include progesterone, but interpretation is challenging without a physician. Caveat: Self-administered progesterone creams without medical supervision carry risks, especially regarding endometrial safety. The evidence for progesterone alone to relieve menopausal symptoms is weak to moderate. In summary, progesterone’s key role in menopause is as a protective adjunct in HRT, not as a standalone anti-aging hormone.