Your ovarian reserve — the number of eggs remaining in your ovaries — is one of the single most important factors in fertility. Ovarian reserve testing combines a simple blood test with an ultrasound scan to give you and your specialist a clear, evidence-based picture of your egg supply, so you can make informed decisions about timing, treatment, and family planning.
What Is Ovarian Reserve Testing?
Ovarian reserve testing measures how many eggs remain and how the ovaries are likely to respond to treatment. The two most reliable markers are anti-Müllerian hormone (AMH), measured via blood test, and antral follicle count (AFC), assessed by transvaginal ultrasound. Together they form the cornerstone of fertility evaluation.
AMH remains stable throughout the menstrual cycle, so it can be tested on any day, while the antral follicle count is best performed in the early follicular phase. Combined, these two markers provide the most accurate estimate of ovarian reserve available, guiding decisions on treatment timing, IVF medication dosing, and whether egg freezing may be advisable.
Common Concerns Ovarian Reserve Testing Can Address
- Wanting to understand your fertility potential before trying to conceive
- Over 35 and considering the timing of pregnancy or egg freezing
- Planning IVF and needing baseline information to guide your protocol
- Family history of early menopause or premature ovarian insufficiency
- Previous chemotherapy, ovarian surgery, or other treatments that may affect egg supply
Are You a Good Candidate?
- Any woman who wants to understand her remaining egg supply
- Able to attend a single clinic visit for a blood draw and ultrasound
- Not currently pregnant (AMH levels are unreliable during pregnancy)
Techniques & Options
Ovarian reserve testing relies on two complementary investigations — one blood-based and one image-based. Used together, they give the most reliable estimate of remaining egg supply that modern medicine can provide. Neither test requires any special preparation, and both can usually be completed in a single clinic visit.
It is important to understand that these tests measure quantity, not quality. Egg quality is primarily determined by age and cannot be directly tested without retrieving and analysing eggs. Your specialist will interpret your results in the context of your age and overall health.
AMH Blood Test
Anti-Müllerian hormone (AMH) is produced by the granulosa cells of small ovarian follicles. The level of AMH in the blood correlates closely with the number of remaining eggs, making it the single most reliable blood-based marker of ovarian reserve. Unlike FSH and oestradiol, AMH remains relatively stable throughout the menstrual cycle, so it can be drawn on any day — a significant advantage for patients who cannot always time their appointment to a specific cycle day.
- Can be tested on any day of the menstrual cycle
- Provides the most reliable blood-based estimate of remaining egg supply
- Helps predict response to IVF stimulation — guiding medication dosing
Antral Follicle Count (AFC) Ultrasound
An antral follicle count is performed during a transvaginal ultrasound, ideally in the early follicular phase (day 2–5 of the cycle). The specialist counts the small, resting follicles (2–10mm in diameter) visible on each ovary. Each antral follicle contains an immature egg that has the potential to develop during a stimulated cycle. A higher count generally indicates a larger ovarian reserve, while a lower count may suggest fewer remaining eggs.
- Combined with AMH, provides the most accurate ovarian reserve estimate available
- Helps predict how many eggs may be retrieved during an IVF cycle
- Also identifies ovarian cysts, polycystic morphology, and other structural findings
Recovery Timeline
Blood Draw & Ultrasound
Both tests are typically performed in a single appointment lasting 30–45 minutes. The blood draw is a standard venous sample from your arm. The transvaginal ultrasound is a brief, minimally uncomfortable scan. No preparation, fasting, or recovery time is needed, and you can return to normal activities immediately.
Within 24–48 Hours — Results Available
AMH results are typically available within 24–48 hours. Your antral follicle count is available immediately after the ultrasound. Once the full picture is ready, your specialist will schedule a consultation to discuss the findings.
Results Consultation
Your fertility specialist will explain your AMH level and antral follicle count in plain language, placing them in the context of your age and reproductive goals. You'll understand what the numbers mean, how they compare to average values for your age group, and what options are available to you — whether that is reassurance, further investigation, egg freezing, or fertility treatment.
After Your Visit
A comprehensive written report is provided, including your AMH level, antral follicle count, reference ranges for your age group, and your specialist's interpretation and recommendations. This report can be shared with any fertility clinic worldwide.
What to Expect
Safety & Risks
Ovarian reserve testing is a very low-risk combination of a routine blood draw and a non-invasive ultrasound scan. There are no medications, sedation, or surgical procedures involved. The main considerations are related to interpreting the results rather than the tests themselves.
- Minor bruising at the blood draw site
- Mild discomfort during the transvaginal ultrasound
- Anxiety or emotional distress if results indicate a lower-than-expected reserve
- AMH and AFC provide a measure of egg quantity, not egg quality — a normal reserve does not guarantee fertility
- AMH levels can be artificially affected by hormonal contraception, recent pregnancy, or certain medical conditions
Your specialist will interpret your results carefully, taking into account factors that may influence AMH levels — such as current use of hormonal contraception, which can temporarily suppress AMH. A single test provides a reliable snapshot, but if results are unexpected or borderline, your specialist may recommend repeating the test after discontinuing contraception or at a different time.
How Much Does Ovarian Reserve Testing Cost in Thailand?
Our pricing is transparent and all-inclusive — your quote covers the blood test, ultrasound, specialist consultation, and written report.
Ovarian Reserve Testing
Ovarian reserve assessment- Specialist consultation
- AMH blood test
- Transvaginal ultrasound
- Antral follicle count
- Results interpretation
- Written report & recommendations
Common Questions About Ovarian Reserve Testing
Everything you need to know before your procedure
Dr. Natthida Chaisiri
MEDICALLY REVIEWEDDr. Natthida Chaisiri
MEDICALLY REVIEWEDFertility Specialist · Bangkok
Last reviewed: February 18, 2026
What's Included
- Specialist consultation
- AMH blood test
- Transvaginal ultrasound
- Antral follicle count
- Results interpretation
- Written report & recommendations
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