High DHEAS Symptoms: Causes, Signs & What to Do
High DHEAS is an adrenal androgen excess that causes androgen-driven symptoms in women and points to adrenal hyperactivity. This page covers the specific symptoms, likely causes, normal ranges, and when to act.
DHEA-sulfate (DHEAS) is an androgen produced almost exclusively by the adrenal cortex, making it a reliable marker of adrenal androgen output. Unlike testosterone, which comes from both the adrenals and gonads, a high DHEAS nearly always points to adrenal overactivity. In women, excess adrenal androgens cause the same clinical features as excess testosterone: acne, unwanted hair growth, and menstrual disruption. See the DHEAS biomarker overview for how it is measured and what it reflects.
What High DHEAS Means
DHEAS is the most abundant circulating steroid hormone in the body and serves as a precursor for sex hormones in peripheral tissues. Its production is regulated by ACTH from the pituitary gland. When the adrenal cortex is overactive — from adrenal hyperplasia, excess ACTH stimulation, or a tumor — DHEAS rises above the normal age-expected range. DHEAS also declines markedly with age (peak in the mid-20s), so what counts as elevated must be interpreted against age-specific reference ranges.
Symptoms of High DHEAS
Symptoms are predominantly from excess androgen action in peripheral tissues. They are most clinically apparent in women.
In women:
- Acne — persistent facial and back acne, particularly cystic or hormonal pattern in the lower face and jawline
- Hirsutism — unwanted male-pattern hair growth on the face, chest, abdomen, and inner thighs
- Androgenic alopecia — thinning at the crown or temples (female-pattern hair loss)
- Irregular menstrual cycles or oligomenorrhea (infrequent periods)
- Reduced fertility from ovulatory dysfunction
- Clitoral enlargement and voice deepening in severe or long-standing cases (suggests adrenal carcinoma rather than benign causes)
In men:
- High DHEAS is less likely to produce obvious symptoms because male androgen physiology is already androgen-dominant
- Excessive supplemental DHEAS use may accelerate acne and scalp hair loss
What Causes High DHEAS
- PCOS (polycystic ovary syndrome) — the most common cause in reproductive-age women; adrenal contribution adds to ovarian androgen excess
- Congenital adrenal hyperplasia (CAH), particularly non-classical 21-hydroxylase deficiency — enzyme block diverts steroid precursors toward DHEAS and androgens
- Adrenal adenoma — benign adrenal tumor with autonomous androgen secretion
- Adrenal carcinoma — rare but important; very high DHEAS (above 700 µg/dL) with rapidly progressive virilization raises this concern
- Excess ACTH stimulation from ectopic ACTH secretion (small cell lung cancer, carcinoid) or Cushing’s disease
- Exogenous DHEA supplementation (widely sold as an over-the-counter supplement; directly raises DHEAS)
- Insulin resistance and obesity — insulin stimulates adrenal androgen production
Normal DHEAS Levels
| Group | Reference Range | |---|---| | Women 20-29 | 45-380 µg/dL | | Women 30-39 | 45-320 µg/dL | | Women 40-49 | 32-240 µg/dL | | Women 50+ | 26-200 µg/dL | | Men 20-29 | 280-640 µg/dL | | Men 30-39 | 120-520 µg/dL | | Men 40+ | Declining with age | | High concern (women) | Above 350-430 µg/dL depending on age |
DHEAS declines substantially with age — a value of 450 µg/dL is abnormal in a 45-year-old woman but may be expected in a 22-year-old.
When to See Your Care Team
Book a 1:1 consultation with a licensed care team lead for DHEAS above the age-specific upper limit. The first evaluation step is to determine whether the elevation is adrenal in origin and to rule out non-classical CAH (with a morning 17-hydroxyprogesterone) and adrenal tumor (with adrenal imaging if DHEAS is markedly elevated). DHEAS above 700 µg/dL without an obvious cause (supplementation, CAH) should prompt adrenal imaging to rule out carcinoma.
Frequently Asked Questions
Is DHEAS the same as DHEA?
DHEA (dehydroepiandrosterone) and DHEAS (DHEA-sulfate) are closely related. DHEAS is the sulfated, water-soluble storage form that circulates at much higher concentrations and has a longer half-life. When labs measure “DHEA-S” or “DHEAS,” they are measuring the sulfate form. The two are interconvertible, and most clinical labs prefer DHEAS because its serum concentration is more stable than free DHEA.
Can PCOS cause high DHEAS?
Yes. Many women with PCOS have modest DHEAS elevation from adrenal contributions to their overall androgen excess. However, DHEAS in PCOS is usually mildly elevated (within 1.5x the upper limit of normal) rather than markedly high. Significantly elevated DHEAS (above 2x ULN) in a PCOS presentation should prompt evaluation for non-classical CAH or adrenal tumor.
Does DHEA supplementation raise DHEAS?
Yes, directly. DHEA sold as a dietary supplement (typically 25-100 mg) is metabolized to DHEAS and other sex hormones. Supplementation without medical supervision can cause DHEAS to exceed age-appropriate normal ranges and produce androgen excess symptoms, particularly in women. It can also suppress the hypothalamic-pituitary-adrenal axis with prolonged use.
Can high DHEAS affect fertility?
In women, excess androgens from high DHEAS can disrupt ovulation through effects on follicular development and by competing with estrogen signaling in the ovary. This is one mechanism by which non-classical CAH and PCOS reduce fertility. Treatment that lowers DHEAS (managing insulin resistance, low-dose glucocorticoid for CAH) often partially restores ovulation.
