Low Estrone (E1): what it means
A Estrone (E1) result below the normal range is considered low. Here is what a reduced Estrone (E1) can point to, and when it is worth discussing with a doctor.
Reference range: varies widely with sex, cycle phase and menopausal status (no single normal range); E1 is the weaker estrogen that becomes the main estrogen after menopause, made in fat tissue
Understand your full resultWhat a low Estrone (E1) can mean
- Low overall estrogen — as in ovarian failure or hypogonadism, when both estradiol and estrone are low.
- Very low body fat — less tissue available to make estrone.
- Suppression of the ovaries or pituitary–gonadal axis.
When to discuss with a doctor
Estrone is a specialist hormone test, not part of a routine panel — estradiol is usually the estrogen measured. Estrone is checked in particular situations: characterising estrogen status after menopause, investigating estrogen excess (such as from high body fat or, rarely, an estrogen-producing tumour), and monitoring certain hormone therapies. Because estradiol is generally the more informative estrogen and estrone varies with sex, cycle and menopausal status, one estrone value in isolation rarely guides decisions — it is read with estradiol, FSH and the clinical picture. Mediora.AI shows estrone alongside estradiol, FSH and testosterone so the estrogen pattern reads together; the interpretation belongs with your gynaecologist or endocrinologist.
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Upload your test - freeMediora.AI is informational - interpretation, not a diagnosis. A single out-of-range value is common and often benign; always discuss decisions with your doctor.