What it is (overview)

The DHEA Sulphate (DHEA-S) test is a laboratory hormone test that measures the amount of dehydroepiandrosterone sulphate in your blood. DHEA-S is made mostly by the adrenal glands (small glands that sit on top of the kidneys). It is a stable “storage” form of DHEA and is an important building block for androgens (male-type hormones) such as testosterone, and it can also be converted into estrogens in some tissues.

Because DHEA-S comes primarily from the adrenal glands, it helps your clinician understand whether symptoms of hormonal imbalance are more likely related to the adrenal glands rather than the ovaries or testes. In simple terms:

Higher-than-expected DHEA-S may suggest increased adrenal androgen production. Depending on how high it is and your symptoms, this can be seen with conditions such as polycystic ovary syndrome (PCOS), certain forms of congenital adrenal hyperplasia, or (less commonly) an adrenal tumor.

Lower-than-expected DHEA-S may suggest reduced adrenal hormone production, which can occur in some adrenal disorders or with long-term suppression of adrenal function. DHEA-S levels also naturally tend to decline with age, and reference ranges vary by age and sex.

Your result is interpreted using an age- and sex-specific reference range and alongside other tests (often testosterone, androstenedione, 17-hydroxyprogesterone, LH/FSH, prolactin, and sometimes cortisol) plus your symptoms and medical history.

When & why it's usually done

A DHEA sulfate test is typically ordered to evaluate adrenal function and to investigate signs of excess or deficiency of androgens. It is commonly used in women’s health evaluations, but it can be helpful for people of any sex.

Your clinician may recommend this test if you have symptoms or findings such as:

Possible androgen excess (high male-type hormones)

These symptoms can be related to elevated testosterone and/or DHEA-S:

• New or worsening hirsutism (excess facial/body hair)
• Acne that is persistent or sudden in onset
• Scalp hair thinning or male-pattern hair loss
• Irregular periods, skipped periods, or infertility concerns
• Deepening voice, increased muscle mass, or other signs of virilization (more concerning when rapid)

PCOS evaluation

DHEA sulfate is often checked as part of a work-up for PCOS, especially when there are irregular menstrual cycles, acne, excess hair growth, or elevated androgens. While PCOS is primarily an ovarian condition, DHEA-S can be mildly to moderately elevated in some people with PCOS, helping distinguish patterns of androgen production.

Concern for an adrenal source of androgens

Because DHEA-S is produced mainly by the adrenal glands, very high levels can raise suspicion for an adrenal tumor (benign or malignant) or adrenal hyperplasia, particularly if symptoms start suddenly or progress quickly.

Evaluation of early puberty or atypical development (in children/adolescents)

• Early appearance of pubic/underarm hair
• Rapid growth or other signs of early androgen exposure

Possible adrenal insufficiency or reduced adrenal hormone production

• Unexplained fatigue, weakness, weight loss, low blood pressure, or other symptoms where adrenal hormone issues are being considered (DHEA-S is usually interpreted with cortisol and ACTH testing)

Menopause and midlife hormone assessment (selected cases)

DHEA-S naturally declines with age, and it may be included in a broader evaluation of symptoms that overlap with menopause (such as changes in energy, libido, or hair/skin changes). On its own, DHEA-S does not diagnose menopause, but it can provide context in an overall hormonal assessment.

Common diseases related to it

• Polycystic ovary syndrome (PCOS)
• Adrenal tumors (adenoma or adrenal carcinoma)
• Congenital adrenal hyperplasia (CAH) (including nonclassic/late-onset forms)
• Adrenal hyperandrogenism (excess adrenal androgen production)
• Adrenal insufficiency (reduced adrenal hormone production; interpreted with other adrenal tests)
• Androgen-secreting tumors (rare; evaluation may include DHEA-S along with testosterone)
• Precocious puberty or premature adrenarche (in pediatric assessments)

Health goals where it may help

• Clarifying the cause of hormonal imbalance symptoms (acne, excess hair growth, hair thinning)
• Supporting a comprehensive PCOS evaluation and monitoring response to treatment
• Assessing adrenal gland health and investigating possible adrenal function disorders
• Helping guide an evaluation of elevated testosterone or androgen excess by identifying an adrenal contribution
• Providing additional context in selected women’s health assessments across life stages, including perimenopause/menopause
• Monitoring follow-up in cases where an adrenal cause (such as an adrenal tumor or adrenal hyperplasia) is suspected or being treated