Why your age and sex change the range
Normal DHEA-S levels can differ by hundreds of mcg/dL across a lifetime. A result that's normal for a young man may be high for an older woman. A low result in an older adult may reflect normal aging. Use the right lab range and ask which hormone or adrenal problem the test is checking.
Age
DHEA-S falls with age
A low result against a young-adult range may sit inside the correct interval for an older adult.
Sex and puberty
Ranges differ by sex and puberty stage
Babies, children, teens, adult men, and adult women need the lab range made for them.
Reason for testing
High and low results need different tests
Fast body changes, PCOS, early puberty, an adrenal mass, and low cortisol each need their own next test.
The result helps choose a hormone or adrenal workup. It is not a general score for stress, aging, or brain fog.
Save this test
Save the DHEA-S value, unit, range, and related hormone tests
Save the matching lab range, hormone products, how fast symptoms changed, related tests, and follow-up plan with the result.
My Fog keeps the result and notes you enter for your appointment.
Babies, puberty, women, pregnancy, men, older adults, medicines, and hormone products
DHEA-S changes after birth, during puberty and pregnancy, between men and women, with medicines, and with age. Use the lab range that fits the person.
Babies, children, and teenagers
DHEA-S is high just after birth, falls fast, and changes again during growth and puberty. Early pubic hair, fast growth, older-looking bones, acne, or early body changes need a children's hormone specialist. DHEA-S is not the main test for congenital adrenal hyperplasia.
Women with acne, hair, or menstrual changes
High DHEA-S can be one finding in a PCOS check. The clinician also needs total and free testosterone, period and ovulation history, pregnancy status, symptoms, medicines, and checks for other causes. A fast voice change, new heavy facial hair, severe acne, fast muscle growth, or fast scalp hair loss needs prompt review.
Pregnancy and postpartum
Pregnancy changes how the mother, baby, and placenta handle these hormones. DHEA-S was about 50% lower by the third trimester in one study. Use a pregnancy range. Ask the pregnancy and hormone teams before starting DHEA.
Men
A man may have high DHEA-S without clear symptoms. Use the lab range for his age. Mention supplements, hormones, adrenal history, and the reason for testing. Other tests check low testosterone, sexual problems, and infertility.
Older adults
DHEA-S normally falls with age. Use an older adult's own age range, not a young adult's. New weight loss, dizziness on standing, vomiting, salt craving, weakness, steroid withdrawal, or pituitary symptoms need cortisol-based tests.
Before a DHEA-S blood test
Check that the order says DHEA-S or DHEAS, not DHEA. Ask what health question the result should answer.
You usually do not need special preparation for DHEA-S alone. Follow the lab's rules if other tests require fasting or a set time.
Bring the name, dose, and last use of DHEA or prasterone, body-building or hormone products, steroids, birth control with estrogen, fertility medicines, testosterone, and other hormones. Only change them if the prescriber tells you to.
Record age, sex, pregnancy or postpartum status, menstrual history when needed, and puberty stage for a child or teen. The lab uses these details to choose the right range.
Note new hair growth, acne, scalp hair loss, period changes, fertility questions, and rapid changes in voice or muscle. Add early puberty, an adrenal mass, dizziness when standing, weight loss, salt craving, steroid use, or pituitary disease.
If adrenal crisis is possible, get care without waiting for this result. Fainting, confusion, severe weakness, repeated vomiting, severe belly pain, very low blood pressure, severe dehydration, or fast decline during illness needs urgent care.
Check that it is DHEA-S
Save the test name, sample, method, value, unit, lab range, collection time, and any product that contains DHEA.
Use the range that fits the person
Use the lab range for the person's age and sex. Children may also need a range based on birth and puberty stage.
Read it with the reason for testing
A very high result with rapid hair growth or voice changes needs a different workup. A small rise during a PCOS check and a low result during an adrenal check also need different follow-up.
Ask which test comes next
The next step may be testosterone, SHBG, androstenedione, or 17-hydroxyprogesterone. Other options include 8 AM cortisol and ACTH, a stimulation test, salts in the blood, blood sugar, or an adrenal scan.
How to read a DHEA-S result
Check that the test is DHEA-S. Then read the unit, method, lab range, age, sex, pregnancy or puberty details, hormone products, symptoms, and reason for testing.
Inside the matching laboratory interval
Inside the performing laboratory's interval for the person's age, sex, pubertal or pregnancy context, and assay
This test did not find a major DHEA-S change. Symptoms that point to PCOS or a problem with the adrenal or pituitary glands may still need other tests.
Borderline or difficult to compare
Near or modestly outside the matching laboratory interval, or difficult to compare because age, sex, pubertal stage, pregnancy, method, or supplement and medicine use is missing
Check the right lab range and unit. Add any DHEA products, hormones, or steroids and the reason for testing. The clinician may repeat the same test or order a hormone panel for the suspected condition.
Clearly outside the matching interval
Clearly above or below the matching laboratory interval, especially with rapid symptoms or an adrenal, pituitary, puberty, or cortisol concern
A very high result may need a prompt adrenal and hormone check. A low result during an adrenal workup needs cortisol and ACTH tests. The DHEA-S number alone does not choose treatment.
Normal ranges move by hundreds of mcg/dL
Mayo's current male interval is 105 to 728 mcg/dL at ages 18 to 30 and 6.6 to 162 at age 71 or older. Its female interval moves from 83 to 377 to 5.3 to 124. Copy the exact interval printed beside your result rather than borrowing one age group's target.
See research details
These notes explain age and pregnancy ranges, very high results, PCOS, congenital adrenal hyperplasia, low adrenal function, supplements, and test methods.
These are Mayo's examples, not universal targets. Mayo reports that DHEA-S of 600 mcg/dL or more can suggest an androgen-secreting adrenal tumor on its method, but the value is not a universal cancer cutoff and needs the matching interval and clinical context.
A prompt review looks at the method, the lab range, how fast symptoms appeared, testosterone and other steroids, exam findings, and whether to scan.
Keep menstrual history, clinical androgen signs, testosterone method, pregnancy exclusion, and other causes of androgen excess in the assessment. Repeating DHEA-S alone has limited value for ongoing PCOS monitoring.
In a child with early androgen signs or an adult with suspected nonclassic CAH, use the pediatric or endocrine steroid pathway, often including 17-hydroxyprogesterone, rather than treating DHEA-S as the diagnosis.
Use symptoms, 8 to 9 AM cortisol, ACTH, electrolytes, renin and aldosterone when relevant, and a corticotropin stimulation test when indicated. Do not wait for testing during suspected adrenal crisis.
A low age-related value doesn't prove that DHEA-S is causing brain fog. Check sleep, medicines, anemia, thyroid disease, blood sugar, mood, pain, neurological symptoms, and the wider clinical history directly.
A DHEA-S result isn't a reason to start an over-the-counter hormone for memory or concentration. Review possible androgenic and estrogenic effects, interactions, cancer history, fertility or pregnancy plans, and the actual treatment indication with a clinician or pharmacist.
Better measurement traceability improves laboratory comparison, but it does not create a wellness target or make one result diagnostic. Keep the method and laboratory interval with the value.
What can you do before follow-up?
Keep the lab range, hormone products, symptoms, and reason for testing with the result. Food and lifestyle cannot show why DHEA-S is high or low.
Keep the exact hormone products with the result
Take photos of DHEA, prasterone, testosterone, estrogen, fertility, body-building, adrenal-support, and mixed hormone products. Check when you last used each one. Hidden hormones can change the result and your symptoms.
Record when symptoms began and how fast they got better or worse
Work out when acne, hair growth or loss, period changes, voice or muscle changes, early puberty, weight loss, dizziness, vomiting, salt craving, or low blood pressure began, and how fast each changed.
Choose the test that matches the concern
For high androgen signs, ask about testosterone, SHBG, androstenedione, 17-hydroxyprogesterone, or a scan. For low adrenal function, ask about 8 AM cortisol, ACTH, blood salts, and a stimulation test.
The number isn't something to treat
Do not start DHEA, pregnenolone, testosterone boosters, adrenal mixes, licorice, high-dose vitamins, fasting, or a strict diet to change the number. Hormone products can cause acne, hair, period, or mood changes and other hormone-related harm.
Possible adrenal crisis needs urgent medical care. Fast new hair, voice, or body changes, a very high result, or a known adrenal mass needs prompt review. Only stop steroids or prescribed hormones with a plan from the prescriber.
What to save before the next appointment
Keep these together
- DHEA-S (not DHEA), value, unit, laboratory interval, method, collection date and time, and specimen notes.
- Age, sex, pregnancy or postpartum status, and pubertal stage when relevant.
- Save the reason for testing, when symptoms began, how fast they changed, and menstrual or fertility history. Add early-puberty signs, faintness or low blood pressure, weight loss, vomiting, and salt craving. Also include any adrenal mass, pituitary history, and steroid exposure.
- DHEA, prasterone, testosterone, estrogen, fertility, bodybuilding, adrenal-support, glucocorticoid, contraception, vitamin, and supplement products with the last use before the draw.
- Total or free testosterone, SHBG, androstenedione, 17-hydroxyprogesterone, 8 AM cortisol, ACTH, stimulation test, sodium, potassium, glucose, imaging, clinician interpretation, and follow-up plan.
Question for the visit
“Ask whether the test is checking high androgen levels, puberty, congenital adrenal hyperplasia, an adrenal tumor, low adrenal function, the pituitary gland, or a supplement effect. Ask which test comes next.”
Sources for DHEA-S Blood Test
Guide sections: Babies, children, and teenagers; Women with acne, hair, or menstrual changes; Men; How fast things changed, and which way; The number isn't something to treat
Guide sections: Keep the exact hormone products with the result
Guide sections: Age and sex change the reference interval; A marked rise may need an adrenal-tumor workup; DHEA-S is not the main CAH test; Babies, children, and teenagers; Men; Older adults
Guide sections: Keep the exact hormone products with the result
Guide sections: DHEA-S does not diagnose PCOS; Women with acne, hair, or menstrual changes; How fast things changed, and which way; Choose the test that matches the concern
Guide sections: DHEA-S is not the main CAH test
Guide sections: A low result can support, but not diagnose, adrenal insufficiency
Guide sections: DHEA treatment has not shown a clear cognitive benefit; The number isn't something to treat
Guide sections: A low result can support, but not diagnose, adrenal insufficiency; Choose the test that matches the concern
Guide sections: Older adults
Guide sections: Pregnancy and postpartum
An isotope dilution-liquid chromatography-tandem mass spectrometry-based candidate reference measurement procedure for the quantification of dehydroepiandrosterone sulfate in human serum and plasma.
Effect of dehydroepiandrosterone therapy on cognitive performance among postmenopausal women: a systematic review of randomized clinical trial data.
Biochemical diagnosis of adrenal insufficiency: the added value of dehydroepiandrosterone sulfate measurements.
Associations between dehydroepiandrosterone sulphate (DHEAS) and cognitive function in 5,061 older men and women in the English Longitudinal Study of Ageing.
Steroid hormone levels in pregnancy and 1 year postpartum using isotope dilution tandem mass spectrometry.
See each claim's sources
range
DHEA-S reference intervals change sharply with age, sex, and pubertal stage; Mayo's current adult male and female intervals decline substantially from ages 18 to 30 to age 71 or older.interpretation
Mayo reports that DHEA-S of 600 mcg/dL or more can suggest an androgen-secreting adrenal tumor on its method, but the value is not a universal cancer cutoff and needs the matching interval and clinical context.limitation
The 2023 international PCOS guideline places total and free testosterone first and treats DHEA-S as a less-specific additional androgen measurement when those are not elevated.limitation
An age- and sex-adjusted low DHEA-S can increase suspicion of adrenal insufficiency but cannot establish the diagnosis without cortisol- and ACTH-based assessment.limitation
A cohort of 5,061 older adults did not support DHEA-S as a driver of cognitive decline, and a 2023 systematic review did not support an overall cognitive benefit from DHEA therapy in postmenopausal women.context
Pregnancy changes maternal, fetal, and placental steroid handling, and one mass-spectrometry study found maternal DHEA-S about 50 percent lower by the third trimester.procedure
A 2026 study published a candidate isotope-dilution LC-MS/MS reference measurement procedure for DHEA-S in serum and plasma, supporting method traceability rather than a universal clinical target.safety
DHEA products should not be started solely to change a laboratory value or treat cognition, energy, mood, or aging because clinical benefit is uncertain and hormone-related adverse effects are possible.