What is Dehydroepiandrosterone Sulfate (DHEA-S) blood test? A complete guide
Learn about the Dehydroepiandrosterone Sulfate (DHEA-S) blood test in Australia, its role in hormone balance, adrenal health, mood, and energy.
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On this page
In short
- A DHEA-S result must be read against the reference interval for your age and sex, because levels fall with age and no single adult range fits everyone.
- High DHEA-S can point to more adrenal androgen production, as in PCOS or congenital adrenal hyperplasia, but it cannot diagnose the cause on its own.
- Low DHEA-S is common with ageing and is not a reason to start DHEA supplements yourself, so speak to your GP before taking any hormone product.
From Vively member data
2.7 µmol/L
Median DHEA-S, women 40s
against 4.0 µmol/L in men the same age
4.5 µmol/L
Median DHEA-S, women under 30
falling to 1.3 µmol/L in women 60 and over
1,825
Members tested
first blood tests, January 2024 to October 2026
A DHEA-S blood test result needs to be interpreted for your age, sex and symptoms. High levels can point to increased adrenal androgen production, while lower levels can occur with ageing or some adrenal and pituitary conditions. An abnormal result alone cannot diagnose the cause or explain fatigue, mood or weight changes.
How does your DHEA-S compare with Vively members your age?
Among 1,825 Vively members tested in 2024 to 2026, women aged 40 to 49 had a median DHEA-S of 2.7 µmol/L (middle half 2.0 to 3.9). Men the same age: 4.0 µmol/L. The lab range for women aged 40 to 49 is 0.7 to 6.5 µmol/L. A member median is not a target.
Pick your sex and age, then type your result.
See the numbers as a table
| Group (µmol/L) | Members | Median | Middle 50% | 5th to 95th percentile | Lab range |
|---|---|---|---|---|---|
| Women 18 to 29 | 66 | 4.5 | 3.5 to 6.2 | 2.2 to 10.0 | 1.2 to 10.3 |
| Women 30 to 39 | 294 | 3.7 | 2.7 to 4.9 | 1.2 to 7.1 | 1.2 to 10.3 |
| Women 40 to 49 | 381 | 2.7 | 2.0 to 3.9 | 1.0 to 6.3 | 0.7 to 6.5 |
| Women 50 to 59 | 273 | 2.0 | 1.2 to 3.0 | 0.8 to 5.0 | 0.7 to 6.5 |
| Women 60 and over | 124 | 1.3 | 0.8 to 2.1 | 0.3 to 3.8 | 0.5 to 5.0 |
| Men 18 to 29 | 73 | 6.6 | 5.0 to 9.0 | 3.2 to 12.0 | 3.3 to 17.4 |
| Men 30 to 39 | 195 | 5.4 | 4.0 to 7.2 | 2.6 to 10.0 | 3.3 to 17.4 |
| Men 40 to 49 | 236 | 4.0 | 2.8 to 5.2 | 1.5 to 8.1 | 1.9 to 4.4 |
| Men 50 to 59 | 122 | 2.9 | 2.0 to 4.0 | 1.0 to 6.6 | 1.9 to 4.4 |
| Men 60 and over | 61 | 1.6 | 1.0 to 2.6 | 0.7 to 5.4 | 0.8 to 7.9 |
See how DHEA-S changes with age, with charts for women and men, on our DHEA-S test page.
What is dehydroepiandrosterone sulfate (DHEA-S)?
DHEA-S is a hormone made mainly by the adrenal glands above your kidneys. It is a precursor, or starting material, that the body can use to make androgens and oestrogens, including testosterone and oestrogen.
DHEA-S is present in both women and men. Levels change with age, so a result that is expected for one person may be outside the reference interval for another. DHEA-S and DHEA are related hormones, but the test names are not interchangeable.
How to read your DHEA-S blood test result
Compare your result with the age- and sex-appropriate reference interval on your pathology report. There is no single adult range that fits everyone.
Check the test name and units before comparing results from different laboratories. The member comparison above describes a tested population; its median is not a treatment target or a diagnostic threshold.
Your GP will consider whether the result fits your symptoms, has changed over time and appears alongside other abnormal hormone results. A flag outside the range is a reason to review the result, rather than a diagnosis on its own.
What can high DHEA-S mean?
High DHEA-S can suggest that the adrenal glands are producing more androgens. The significance depends on the degree of elevation and the clinical picture.
Possible explanations include polycystic ovary syndrome (PCOS), congenital adrenal hyperplasia and, less commonly, an adrenal tumour. Congenital adrenal hyperplasia is an inherited condition that affects adrenal hormone production. These possibilities need clinical assessment; a high DHEA-S result cannot distinguish between them.
In women, symptoms of androgen excess can include unwanted facial or body hair, acne, scalp hair loss or irregular periods. A rapidly changing voice or rapidly developing symptoms need prompt medical review.
The RCPA notes that slight elevations may have no clinical significance. This is why the size of the change, symptoms and other hormone results matter more than the flag alone.
What can low DHEA-S mean?
DHEA-S levels commonly fall with age. A lower result can also occur with adrenal insufficiency or reduced pituitary hormone production, but it cannot confirm either condition.
Tiredness, low mood and weight changes have many possible causes. They should not automatically be attributed to a DHEA-S result. Your GP can assess these symptoms and decide whether adrenal, thyroid or other investigations are appropriate.
A low result is not a reason to start DHEA supplements yourself. Mayo Clinic advises that evidence does not support anti-ageing claims for DHEA supplements and that they can have serious side effects.
DHEA-S in context with other hormones
DHEA-S is most useful when it answers a specific clinical question alongside other findings. For example, a GP investigating androgen excess may consider testosterone and other hormone tests as well as symptoms and examination.
Our explanation of hormone results describes why age, life stage and medicines affect interpretation. For women with androgen-related symptoms, the testosterone levels guide for women provides related context.
If adrenal insufficiency is suspected, a clinician may investigate cortisol and ACTH rather than relying on DHEA-S. Our article on cortisol results explains why the collection time and test type matter.
Practical steps after an abnormal result
Start with a review of the report and symptoms. Diet or stress management should not be presented as a treatment for an unexplained DHEA-S abnormality.
- Check that the laboratory used the appropriate age and sex reference interval.
- Tell your GP about all medicines and supplements, including hormone products.
- Describe changes in periods, body hair, skin, muscle strength or weight, and when they began.
- Ask which other findings support an explanation and whether repeat or specialist testing is needed.
Regular meals, activity suited to your health and adequate rest support wellbeing. They are not a substitute for investigation of an adrenal condition. Avoid using supplements to chase a younger person's DHEA-S result.
When to see your GP
Arrange review for an unexplained abnormal result, persistent symptoms or rapid signs of androgen excess. If low DHEA-S appears alongside symptoms such as unexplained weight loss, dizziness or vomiting, tell your GP rather than assuming it is simply due to age.
Seek urgent medical care for collapse, confusion, severe weakness or persistent vomiting, especially with known or suspected adrenal insufficiency. Decisions about urgency depend on symptoms, not on DHEA-S alone.
How Vively can help
Vively is an Australian health membership. Our Baseline Health Check is a blood test covering 70+ markers, with a practitioner consult to explain results. Our health team can discuss additional testing within your personal testing plan, including whether a cortisol blood test is relevant to discuss with your GP.
The DHEA-S test page linked above covers current availability and collection details. A GP from our network signs your request after a short telehealth consult, so you don't need to visit your own GP first.
Frequently asked questions
Does high DHEA-S mean I have PCOS?
No. DHEA-S may be raised in PCOS, but there are other possible causes of a high result. PCOS assessment considers symptoms, menstrual history and other findings, and excludes alternative explanations. Your GP will interpret the result in that context rather than diagnosing PCOS from DHEA-S alone.
Can I take DHEA to correct a low result?
Speak to your GP before taking a hormone supplement. A low result may be expected for your age or may need investigation, and raising the number does not establish that your health will improve. Tell your clinician about any DHEA or other hormone products you already take.
Sources
The Baseline Health Check is a blood test covering 70+ markers at one of 3,700+ collection centres. Your dietitian goes through your results with you and builds your plan. $99 a month, no minimum term.
