AMH Test in Bangkok: Ovarian Reserve, Timing, Cost and What Results Mean

Fertility and hormone testing guide · 2026

Anti-Mullerian Hormone is the single most requested fertility marker in Bangkok — and the most frequently misread. This guide covers what it can and cannot tell you.

By MedEx · Updated September 2026 · Approx. 8-minute read

Quick answer

An AMH test in Bangkok measures Anti-Müllerian Hormone, a marker produced by small developing follicles in the ovaries. It gives an indication of ovarian reserve — roughly, the size of the remaining egg pool — and is widely used to predict how a person may respond to fertility stimulation. It can be drawn on any day of the menstrual cycle and does not require fasting. Importantly, AMH is a quantity signal, not a quality signal: a low result does not mean you cannot conceive naturally, and a high result does not guarantee that you will.

In this guide

1. What AMH actually measures
2. Who should consider testing
3. When to take the test
4. Reading the result sensibly
5. What to test alongside AMH

What AMH actually measures

AMH is secreted by granulosa cells surrounding small pre-antral and early antral follicles. Because the number of those follicles falls steadily with age, the AMH level in blood broadly tracks the size of the remaining ovarian follicle pool.

That makes AMH useful for one specific job: estimating how many eggs are likely to be retrieved in a stimulated IVF cycle. Fertility units use it alongside an antral follicle count on ultrasound to choose a stimulation protocol and to counsel on expected yield.

What AMH does not measure is egg quality, which is dominated by age, or the health of the fallopian tubes, uterus or sperm. A full picture usually needs several markers together — see the wider set of functional lab tests available through MedEx.

Who should consider testing

• Anyone planning egg freezing or IVF who wants a realistic expectation of yield.
• People with irregular or absent periods being assessed for polycystic ovary syndrome, where AMH is often elevated.
• Those with a history of ovarian surgery, endometriosis, chemotherapy or pelvic radiotherapy.
• Anyone with a family history of early menopause who wants a baseline in their early thirties.
• People simply wanting a starting point before a fertility consultation, alongside a broader health checkup package.

AMH is a poor screening test for the general population. If you are not planning treatment and have no symptoms, a normal or low number is unlikely to change any decision — and a low number can cause avoidable distress.

When to take the test

AMH is comparatively stable across the menstrual cycle, so it can be drawn on any day. That convenience is one reason it has largely displaced day-3 FSH as a first-line reserve marker.

A few things do shift the number. Combined hormonal contraception can lower AMH modestly while it is being taken, with recovery after stopping. Recent ovarian surgery, GnRH agonist treatment and pregnancy can also depress it. If you are on the pill and the result will drive a treatment decision, discuss with the clinician whether to test off it.

Assay differences matter too. Laboratories use different platforms and units (ng/mL versus pmol/L), so comparing a result from one laboratory to a cut-off quoted by another is a common source of confusion. If you are tracking AMH over time, repeat with the same laboratory where possible.

Reading the result sensibly

Results are usually described in bands rather than a single pass or fail line. Broadly, a higher-than-expected AMH for age raises the question of polycystic ovary syndrome; a mid-range value suggests a typical response to stimulation; a low value suggests a reduced pool and a likely lower egg yield.

Three cautions are worth holding on to:

1. AMH predicts response, not natural conception. Studies of people trying to conceive naturally have repeatedly found that AMH is a weak predictor of monthly pregnancy chance once age is accounted for.
2. Age still dominates. A 32-year-old with a low AMH and a 41-year-old with the same number are in very different clinical positions.
3. One result is a snapshot. Interpretation improves considerably with an antral follicle count and a clinical history.

Book a doctor consultation or a specialist teleconsultation to have the number placed in context before drawing conclusions.

What to test alongside AMH

An AMH value on its own answers a narrow question. Depending on the reason for testing, clinicians commonly add:

• FSH, LH and estradiol on cycle day 2–4, for a fuller picture of the hypothalamic-pituitary-ovarian axis.
• TSH and free T4, since thyroid dysfunction is a common and treatable contributor to cycle disturbance.
• Prolactin, where periods are absent or infrequent.
• Testosterone, SHBG and DHEA-S, where PCOS is being considered.
• Ferritin, vitamin D and HbA1c, as part of a general preventive checkup.

All of these can be added to a single draw. Search individual biomarkers in the MedEx lab directory or build a panel with the team.

Frequently asked questions

Does an AMH test need to be done on a specific day of the cycle?

No. AMH is relatively stable through the menstrual cycle and can be drawn on any day, which is one of its practical advantages over FSH. Fasting is not required either.

Does a low AMH mean I cannot get pregnant naturally?

No. AMH estimates the size of the remaining follicle pool and predicts response to ovarian stimulation. It is a weak predictor of natural monthly conception chance once age is taken into account. A low result should prompt a conversation with a clinician, not a conclusion.

Can the contraceptive pill affect my AMH result?

Combined hormonal contraception can lower AMH modestly while it is being used, with recovery after stopping. If the result will drive a treatment decision, discuss timing with your clinician first. Do not stop prescribed contraception without advice.

Can AMH results from two different laboratories be compared?

Not reliably. Laboratories use different assay platforms and report in different units, so a value from one laboratory may not line up with a cut-off quoted by another. Where you are tracking change over time, repeat at the same laboratory.

Is a high AMH a good thing?

Not automatically. A markedly high AMH is often seen in polycystic ovary syndrome and can also indicate a higher risk of over-response to fertility stimulation. It should be interpreted alongside cycle history and ultrasound findings.

Can I have the blood drawn at home in Bangkok?

Yes. MedEx offers at-home collection in Bangkok and at sites across Thailand, with a service fee that is waived on larger orders. Confirm coverage for your area when booking.

Sources and further reading

1. MedEx lab test catalogue — biomarkers, collection options and current pricing
2. MedEx functional lab tests
3. ESHRE guideline: Ovarian Stimulation for IVF/ICSI
4. NICE guideline CG156: Fertility problems — assessment and treatment

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.