Experience MedEx Seamless Care Delivery — 10% OFF on Your First Appointment - Use 'TRYMEDEX' Coupon Code on Checkout //////////////////////////////////// General Price List — Consultation: 750 THB | Home Lab Test Service Fee: 750 THB (FREE for Orders Over 5,000 THB)
MedEx is a one-stop destination when it comes to medical tourism and digital specialized health care services. MedEx serves as a connector between patients and trusted world-class health service providers.
Hormone testing guide · 2026
DHEA-S is sold as an anti-ageing marker and used clinically as an adrenal one. The clinical use is the one supported by evidence.
DHEA-sulphate (DHEA-S) is the sulphated form of dehydroepiandrosterone, produced almost entirely by the adrenal cortex. Because it circulates at high concentration with a long half-life and little daily variation, it is the preferred single measure of adrenal androgen output. Clinically it is used to work out whether androgen excess is coming from the adrenal glands rather than the ovaries, and to flag the rare adrenal tumour. It is not a validated marker of biological age, stress resilience or “adrenal fatigue”.
| Sample | Single blood draw; any time of day, no fasting required |
|---|---|
| Main clinical use | Localising androgen excess to the adrenal gland |
| Pair with | Total testosterone, SHBG, 17-hydroxyprogesterone, LH/FSH |
| Not validated for | Adrenal fatigue, biological age, generic stress screening |
| Price | Listed on the MedEx lab test catalogue — same price nationwide |
| Interpretation | Doctor consultation or specialist teleconsultation to review the report |
The adrenal cortex produces DHEA and converts most of it to DHEA-S. Because sulphation extends its half-life dramatically, DHEA-S sits at far higher blood concentrations than DHEA and shows minimal diurnal swing — which is precisely why it is the version laboratories measure.
DHEA-S acts as a precursor: peripheral tissues convert it to testosterone and, downstream, to estradiol. In women it contributes a meaningful share of total androgen exposure. In men, testicular testosterone dominates, so DHEA-S is a smaller player.
Levels peak in the twenties and decline steadily with age. That decline is normal physiology, not a disease, and the evidence that supplementing it produces meaningful benefit in healthy adults is weak.
These panels can be assembled from a single draw through the MedEx lab test catalogue.
Investigating androgen symptoms? Order DHEA-S with testosterone and SHBG together.
Mildly to moderately raised. Common in PCOS and in some people with no identifiable pathology. On its own, and with no rapid change in symptoms, it usually does not alter treatment.
Markedly raised. Deserves prompt specialist review, particularly with rapid symptom onset. Adrenal imaging and further steroid profiling are typically the next step.
Low. Usually reflects age, chronic illness or exogenous glucocorticoid use. It may accompany adrenal insufficiency but is not diagnostic. If adrenal insufficiency is genuinely suspected, an early-morning cortisol with appropriate dynamic testing is the correct pathway, arranged through a specialist teleconsultation.
Reference ranges are strongly age and sex dependent, so always compare against the range printed on your own report rather than a figure found online.
DHEA is widely sold over the counter as an anti-ageing or performance supplement. Taking it will raise your DHEA-S result and can raise testosterone and estradiol unpredictably, which complicates any subsequent interpretation.
If you are taking DHEA and want meaningful baseline testing, tell the clinician. Do not stop a prescribed medicine on your own. For anyone considering supplementation, a conversation with a MedEx doctor about the actual evidence and the interaction with hormone-sensitive conditions is worth having first.
No. DHEA-S has a long half-life and minimal daily variation, so it can be drawn at any time and does not require fasting. This is why laboratories measure DHEA-S rather than DHEA.
A mild to moderate rise is common in PCOS and often has no clear cause. A markedly high result, particularly with rapidly progressing symptoms, needs prompt specialist assessment to exclude an androgen-secreting adrenal tumour or congenital adrenal hyperplasia.
No. Adrenal fatigue is not a recognised medical diagnosis. A low DHEA-S usually reflects age, chronic illness or steroid use. If adrenal insufficiency is genuinely suspected, cortisol testing with appropriate dynamic assessment is the correct pathway.
Yes, substantially, and they can also alter testosterone and estradiol. Tell the clinician what you are taking so the result can be interpreted properly.
Less so. Testicular testosterone dominates male androgen production, so DHEA-S is mainly ordered in men when adrenal pathology is suspected.
Rapid-onset symptoms need a clinician, not just a number.
Medical disclaimer: This article is general health information and does not replace medical advice, diagnosis or treatment. Laboratory reference ranges differ between laboratories and results must be interpreted alongside your symptoms, medicines and medical history. Speak with a qualified clinician before starting, stopping or changing any treatment. Service details, inclusions and prices can change — confirm them with MedEx before booking.
How luteinising hormone is used to time ovulation, what the LH to FSH ratio means in PCOS, and how blood LH differs from urine ovulation kits.
The difference between sensitivity, specificity and positive predictive value in NIPT, and why a high-risk result is often not what it appears.
Why M. genitalium requires macrolide resistance testing, who should be tested, and why asymptomatic screening is not recommended.
Find quality services, specialists, procedures and more from the comfort of your home. All you need to do is enter a keyword or phrase describing what you are looking for.
DOWNLOAD MEDEX ONE APP
MedEx is a one-stop digital care navigation concierge backed by physical infrastructure, owning the patient experience and decentralizing the care continuum across Asia—integrating provider aggregation, satellite clinics, telemedicine, and at-home care.
MedEx is a one-stop digital care navigation concierge backed by physical infrastructure, owning the patient experience and decentralizing the care continuum across Asia—integrating provider aggregation, satellite clinics, telemedicine, and at-home care.
© 2020-26 MedEx Ventures Co., Ltd.
