What 'estrogen dominance' really means
It's not a formal diagnosis — it's a useful pattern. In almost every case, progesterone is too low for the estrogen present, either because ovulation is weak (perimenopause, PCOS, stress) or because estrogen clearance through the liver and gut is sluggish. Calling it 'high estrogen' usually misleads the conversation.
The symptom picture
Heavy, painful, clotty periods; cyclical breast tenderness; fibroids and endometriosis (estrogen-responsive); fluid retention; weight that settles on hips and thighs; PMS, mood swings, irritability; headaches before periods. Symptoms typically worsen through perimenopause as ovulation becomes erratic.
How to test
We test estradiol and progesterone in the luteal phase (about 7 days after ovulation, classically day 21 of a 28-day cycle). We add SHBG, liver markers and (sometimes) DUTCH urine testing for estrogen metabolites to assess clearance. A single random estradiol almost never resolves the question.
What changes once you know
Treatment focuses on the actual cause: supporting ovulation and progesterone production (sleep, fuelling, stress), improving estrogen clearance (cruciferous vegetables, daily bowel movements, alcohol moderation), and — in perimenopause — discussing cyclical progesterone with a doctor.
An imbalance — usually too little progesterone for the estrogen present — rather than truly 'high' estrogen.
Frequently asked
Heavy or painful periods, breast tenderness, fluid retention, PMS and stubborn weight on hips and thighs are the classic picture. Symptoms usually flare in the second half of the cycle.
Not a formal one — it's a descriptive pattern. The drivers (low progesterone, sluggish clearance) are what we actually treat.
In the luteal phase, about 7 days after ovulation. Random testing — or testing when not ovulating — produces misleading results.
Yes — it's one of the most common drivers. Progesterone falls first, often years before estradiol does, leaving estrogen relatively unopposed.
It's associated with weight on hips, thighs and breasts. Fixing it usually shifts that pattern but not always total weight — which is more insulin- and thyroid-driven.
Yes — broccoli, kale, cauliflower and brussels sprouts support phase-1 and phase-2 liver clearance of estrogen. Daily intake plus reliable bowel movements is the dietary foundation.