was ist östrogen — when to see a doctor?

Estrogen is a key female sex hormone primarily produced in the ovaries, regulating the menstrual cycle, fertility, and bone health. Men also produce small amounts. You should see a doctor if you experience symptoms of imbalance: irregular or absent periods, severe PMS, hot flashes, sleep disturbances, mood swings, unexplained weight gain, or low libido. Also seek medical advice for early menopause (before age 40) or signs of estrogen dominance (e.g., breast tenderness, fibroids). Important: at-home hormone tests (saliva or blood) are often unreliable and should not replace clinical assessment. Evidence-based diagnosis requires blood tests for estradiol, progesterone, LH, and FSH ordered by a physician. Consumer DNA tests cannot accurately assess hormone levels. Seek immediate care for acute symptoms like chest pain or sudden vision changes while on hormone therapy.