Specialist profile: Doç. Dr. Nurettin Türktekin

What is AMH, how much should it be and can you get pregnant with low AMH? Learn about AMH testing, ovarian reserve, AFC and how the results are evaluated.

One of the most common tests encountered by women who are planning pregnancy or preparing for in vitro fertilization treatment is AMH. Many women who see low AMH in their blood test experience a similar concern:

“Can I become a mother if my ovarian reserve is low?”

AMH is a very valuable test in evaluating ovarian reserve. However, it is not correct to interpret the result as a "fertility test" alone.

Low AMH suggests that the remaining follicle pool in the ovaries may be reduced. However, it does not directly measure the quality of the eggs, does not alone determine the possibility of natural pregnancy, and does not indicate precisely when menopause will begin.

AMH result in clinical evaluation; The woman's age, number of antral follicles, menstrual cycle, pregnancy plan, previous ovarian surgeries and duration of infertility, if any, should be taken into consideration.

Short Answer

AMH (Anti-Müllerian Hormone) is a hormone secreted from small developing follicles in the ovaries and helps evaluate ovarian reserve.

Low AMH:

  • It may suggest that the ovarian reserve is decreasing.
  • It may indicate that fewer eggs can be obtained in in vitro fertilization.
  • It can be a guide in the timing of the pregnancy plan.

However, low AMH alone does not mean that you cannot get pregnant.

In terms of natural pregnancy, age, ovulation, tubes, uterine structure and sperm characteristics are at least as important as AMH.

Highlights

  • AMH is one of the basic tests used in evaluating ovarian reserve.
  • AMH value generally decreases with age.
  • AMH is more related to the amount of eggs; It does not directly measure egg quality.
  • Natural pregnancy is possible with low AMH.
  • AMH does not reliably indicate how long it will take to get pregnant naturally.
  • Normal or high AMH does not guarantee that pregnancy will occur easily.
  • In in vitro fertilization, AMH is useful in predicting the response of the ovaries to medications.
  • When AMH and AFC are evaluated together, more powerful information about ovarian reserve can be obtained.
  • AMH alone does not diagnose menopause or premature ovarian failure.
  • The result must be interpreted together with age and clinical history.

What is AMH?

AMH, that is, Anti-Müllerian Hormone, is secreted from the cells around the small follicles in the ovaries that are still in the early stages of development.

Women are born with a specific egg pool. A new ovarian reserve is not created throughout life. Follicles naturally decrease over time and ovarian reserve decreases with age.

AMH level can be used in reserve assessment as it is related to the number of small follicles that can participate in development in the ovaries.

However, there is an important distinction here:

AMH gives an idea about the approximate amount of eggs remaining in the ovary; This alone does not indicate the capacity of the eggs to form a pregnancy.

For this reason, comments such as "If AMH is high, fertility is very good; if AMH is low, pregnancy is not possible" are not medically correct.

What is Ovarian Reserve?

Ovarian reserve refers to the follicle pool in the ovaries that has the potential to develop in the future.

This reserve naturally decreases with age. However, the rate of decrease is not the same in every woman.

Situations that may affect ovarian reserve include:

  • Age
  • Genetic predisposition
  • Family history of early menopause
  • Endometriosis
  • Chocolate cyst
  • Ovarian surgeries
  • Chemotherapy
  • Pelvic radiotherapy
  • Some genetic diseases

may take place.

In some women, no obvious reason for low reserve can be identified.

Why is AMH Test Done?

AMH test is not used for a single purpose. It can provide different information, especially in fertility evaluation and planning of assisted reproductive treatments.

To Evaluate Ovarian Reserve

AMH can give an idea about whether the ovarian reserve is lower or higher than expected for age.

However, the result alone is not sufficient. It is more meaningful to evaluate it together with the antral follicle count performed on ultrasound.

To Plan IVF Treatment

In in vitro fertilization treatment, the ovaries are stimulated in a controlled manner with medications. The aim is to develop more than one follicle during the same treatment period.

AMH value helps predict the response of the ovaries to these medications.

In a patient with low AMH:

  • Fewer follicles may develop.
  • Less eggs can be collected.
  • The medication protocol may need to be adjusted individually.

In some patients with very high AMH, the possibility of the ovaries to respond excessively may increase. This is especially taken into account in women with PCOS.

Egg Freezing Planning

For women who postpone having children until later years, their ovarian reserve should be evaluated before egg freezing.

Not only AMH here:

  • Age of the woman
  • AFC value
  • Pregnancy plan
  • Expected number of eggs

look.

One of the most important determinants of egg freezing is the age at which the eggs are frozen.

Before Ovarian Surgery

AMH and AFC evaluation may be important, especially in women of childbearing age who are scheduled for surgery due to a chocolate cyst or another ovarian cyst.

Because some ovarian surgeries may affect healthy ovarian tissue and reserve.

Knowing the current reserve before making a surgical decision in patients planning pregnancy may change the treatment plan.

Before Treatments That May Affect Fertility

AMH test can be used when evaluating fertility-preserving options before treatments that may affect ovarian function, such as chemotherapy or radiotherapy.

How is AMH Test Done?

AMH test is done with a blood sample taken from the arm.

It does not require surgery or special imaging.

AMH varies less throughout the menstrual cycle than some hormones such as FSH. For this reason, in most patients it is not necessary to wait for a certain day of menstruation to be tested.

However, this does not mean that AMH is not affected by any conditions.

For example:

  • Hormonal drugs used
  • Hormonal birth control methods
  • Measurement method of the laboratory
  • Some ovarian diseases

It can be taken into account in the interpretation of the result.

On Which Day of Menstruation is the AMH Test Done?

In most cases, AMH can be measured on any day of the menstrual cycle.

This feature distinguishes it from some hormones such as FSH, which are preferred to be checked during certain periods of menstruation.

However, if other hormones or ultrasound are planned on the same day during the infertility evaluation, the physician may request that the tests be performed together during a certain period.

Is the AMH Test Done on an Empty Stomach?

Fasting is usually not required for AMH measurement.

But in the same blood sample:

  • Fasting glucose
  • Insulin
  • Some metabolic tests

If requested, you may need to fast for these tests.

For this reason, preparations should be made not only for AMH, but also for all requested tests.

What should be the AMH value?

There is no single "ideal value" for AMH that is valid for all women.

In interpreting the result:

  • Woman's age
  • The method used by the laboratory
  • Unit of measurement
  • AFC
  • Clinical history
  • Pregnancy plan

They should be evaluated together.

Although laboratory results can be roughly classified in clinical practice, they should not be interpreted as definitive limits.

AMH ResultGeneral Clinical Interpretation
HighMay be associated with an excess of small follicles; Evaluation may be required for PCOS
Expected range according to ageIt is a supportive finding in terms of reserve
Below approximately 1 ng/mLMay suggest decreased ovarian reserve
Very low valuesCompatible with significant reserve decrease may

This table is not a success table showing the probability of pregnancy.

For example, a pregnancy evaluation of a 29-year-old woman with an AMH of 0.8 ng/mL is not performed in the same way as a 41-year-old woman with the same value.

Age is a very strong determinant of egg quality.

How Much Should AMH Be According to Age?

AMH generally decreases with age. Therefore, "How much AMH should be?" Be sure to ask "How old is he?" next to the question. The question should also be added.

Same AMH value:

  • Lower than expected at age 25,
  • 38 years old is more compatible with age

maybe.

For this reason, it is not correct to draw a definitive conclusion about personal fertility based on the standard "AMH table by age" available on the internet.

In clinical evaluation, the following questions are more important than the number itself:

  • Is AMH low according to age?
  • Is it compatible with AFC?
  • When does the patient plan to become pregnant?
  • Has she had ovarian surgery before?
  • Do you have endometriosis?
  • What is the expected response if in vitro fertilization is required?

What Does Low AMH Mean?

Low AMH suggests that the follicle pool in the ovaries may have decreased.

However, there are three important issues where low AMH is misinterpreted:

Low AMH is not a diagnosis of infertility.

Low AMH is not a diagnosis of menopause.

Low AMH does not indicate that natural pregnancy is impossible.

AMH is especially useful in predicting the response of the ovary to stimulant drugs and the number of eggs that can be obtained during the same treatment period.

Can You Get Pregnant with Low AMH?

Yes. It is possible to get pregnant naturally with low AMH.

A natural pregnancy does not require the development of many eggs every month. When ovulation occurs, a single egg suitable for fertilization may be sufficient for pregnancy.

For this reason, a woman with low AMH who ovulates regularly, has open tubes and no sperm factor can achieve natural pregnancy.

When evaluating the possibility of pregnancy, the following criteria are taken into consideration:

  • Woman's age
  • Ovulation pattern
  • Whether the tubes are open
  • Uterine structure
  • Sperm analysis
  • Infertility duration
  • Presence of endometriosis or other diseases

For this reason, AMH alone is not a "can or cannot get pregnant" test.

Can You Get Pregnant with AMH 0.5?

Yes, it may be possible.

AMH being around 0.5 ng/mL or lower suggests that the reserve may be significantly reduced. However, it does not mean that all the remaining eggs are of poor quality or that the possibility of natural pregnancy is eliminated.

Age is especially important here.

Although a young woman has a small number of eggs, these eggs may be more likely to be chromosomally healthy.

In advanced age, age-related decrease in egg quality may also be added to low AMH.

Is Pregnancy Possible If AMH Is Very Low?

Very low or close to the limit of measurement AMH may suggest that the ovarian reserve is seriously reduced.

However, it cannot be said that "pregnancy is impossible" based only on this value.

In these patients:

  • Age
  • AFC
  • Menstrual pattern
  • Ovulation
  • Response to previous treatment
  • Pregnancy goal

They are evaluated together.

It is especially important not to waste time in women with very low AMH.

Does AMH Show Egg Quality?

No.

The most common mistake about what AMH indicates is confusing the number of eggs with egg quality.

AMH is mostly related to the amount of ovarian reserve.

Egg quality is closely related to the woman's age.

Therefore:

  • A young woman with low AMH may have few but good quality eggs.
  • In an older woman with high or normal AMH, the rate of chromosomally healthy eggs may be lower even though she has many follicles.

Normal AMH does not eliminate the effect of age on egg quality.

Does AMH Show the Chances of Natural Pregnancy?

This is one of the areas where AMH is most misused.

AMH is not a test that reliably predicts whether women will be able to become pregnant naturally in the coming months, especially in women without infertility.

A woman with low AMH can become pregnant naturally in a short time. Another woman with normal AMH:

  • Tubal blockage
  • Ovulation problem
  • Endometriosis
  • Intrauterine problem
  • Sperm factor

She may not be able to achieve pregnancy due to this reason.

Therefore, performing “fertility control” by measuring AMH alone provides limited information.

What are the Causes of Low AMH?

The most natural reason for the decrease in AMH level is advancing age.

Apart from this, the following situations may be associated with a decrease in reserves:

  • Genetic predisposition
  • Family history of early menopause
  • Endometriosis
  • Chocolate cyst
  • Ovarian surgeries
  • Chemotherapy
  • Pelvic radiotherapy
  • Some genetic diseases
  • Premature ovarian failure

In some women, no obvious cause may be found.

Does Low AMH Cause Symptoms?

Most of the time, no.

A woman with low AMH value:

  • She may menstruate regularly.
  • She can ovulate regularly.
  • He may not experience any complaints.
  • She can get pregnant naturally.

For this reason, regular menstruation does not necessarily mean that the ovarian reserve is high.

In severe ovarian function loss, menstrual irregularity may develop; However, low AMH does not have any obvious symptoms on its own.

Does Low AMH Mean Early Menopause?

No.

When AMH is low, it can be thought that the ovarian reserve has decreased. However, it cannot be precisely calculated when a woman will enter menopause with a single AMH result.

In the evaluation of menopause or early ovarian failure:

  • Menstrual pattern
  • FSH
  • Estradiol
  • Clinical symptoms
  • Age
  • Other necessary examinations

They are evaluated together.

AMH can help in this situation, but it is not a diagnostic test on its own.

What Does High AMH Mean?

High AMH usually suggests that there are many small follicles in the ovaries.

This condition may be especially common in women with Polycystic Ovary Syndrome (PCOS).

But high AMH:

  • Ovulation is regular,
  • Egg quality is high,
  • Natural pregnancy will be easy

Does not guarantee.

In PCOS, ovulation may be irregular even though there are many follicles in the ovaries.

In in vitro fertilization treatment, high AMH may require more careful planning of the drug dose, as it suggests that the ovaries may respond strongly to drugs.

What is the Difference Between AMH and AFC?

AFC, or antral follicle count, is the count of small follicles seen in the ovaries during transvaginal ultrasound.

AMH and AFC are two reserve evaluation methods that complement each other.

AMHAFC
Measured by blood testEvaluated by ultrasound
Provides biochemical information about the small follicle poolDirectly determines the current follicle appearance of the ovaries shows
Varies relatively little over the cycleMay be affected by the experience of the person performing the ultrasound
Useful in predicting in vitro fertilization responseUseful in predicting in vitro fertilization response

In clinical evaluation, AMH may be low but AFC may be better than expected or vice versa. In such cases, the whole picture is evaluated instead of focusing on a single result.

What is the Difference Between AMH and FSH?

FSH, that is, Follicle Stimulating Hormone, is another hormone used in the evaluation of ovarian functions.

The level of FSH can change throughout the menstrual cycle. For this reason, ovarian reserve is usually measured in the early period of menstruation.

AMH, on the other hand, shows more limited variability within the cycle.

In necessary patients:

  • AMH
  • AFC
  • FSH
  • Estradiol

A more holistic interpretation can be made by evaluating them together.

Does Low AMH Affect In Vitro Fertilization Success?

Low AMH is especially related to the number of eggs that can be obtained in in vitro fertilization treatment.

As ovarian reserve decreases:

  • Response to medications may be lower.
  • Fewer follicles may develop.
  • Less eggs can be collected.
  • The number of embryos that can be formed may be limited.

However, low AMH does not mean that in vitro fertilization treatment will fail.

The following factors are also important for success:

  • Woman's age
  • Egg quality
  • Number of mature eggs collected
  • Sperm quality
  • Fertilization
  • Embryo development
  • Intrauterine environment

Especially, the treatment expectation of a young patient with low AMH is not the same as that of an older patient with the same AMH value.

If AMH is Low, Is In Vitro Fertilization Necessary?

No.

Low AMH alone does not make you decide on in vitro fertilization.

For example, a woman who is young, has been trying to get pregnant for a short time, ovulates regularly, has open tubes and her husband's sperm analysis is normal, may be given time for natural pregnancy.

In return:

  • Advanced age
  • Very low reserve
  • Long infertility period
  • Tube problem
  • Male factor
  • Endometriosis

If there is, it may be necessary to act faster.

The purpose of the treatment decision is not only to respond to AMH, but also to evaluate the couple's pregnancy chance and available time together.

Can AMH Value Be Increased?

There is no treatment proven to increase AMH safely and permanently.

Laboratory values ​​may change after using some supplements. However, an increase in the AMH number does not mean that new eggs are formed or that the ovarian reserve is actually renewed.

Therefore, the goal of treatment is:

It is not about "increasing the AMH value", but about using the existing reserves in the most appropriate way.

Alleged to increase AMH on the internet:

  • Herbal cures
  • Blends
  • Supplements
  • Non-hormonal products

It should not be used without a doctor's evaluation.

Can Egg Freezing Be Done If You Have Low AMH?

Yes, it can be evaluated in suitable patients.

However, AMH is not used alone in the decision to freeze eggs.

The following criteria are evaluated together:

  • Woman's age
  • AMH
  • AFC
  • How long to postpone pregnancy
  • Expected response of the ovaries to medications
  • Previous surgeries
  • Endometriosis
  • How many eggs can be obtained

With low reserve, a small number of eggs can be obtained in a treatment cycle. Some women may require more than one egg retrieval cycle.

Egg freezing does not guarantee pregnancy in the future. Especially here, the age at which the egg is frozen is an important factor.

Assoc. Prof. Dr. What Path Would Nurettin Türktekin Follow in This Situation?

When evaluating the AMH result, it is not enough to just look at the number in the laboratory report.

Assoc. Prof. Dr. In Nurettin Türktekin's clinical approach, the following questions are evaluated together:

  • How old is the patient?
  • How is the AMH value according to age?
  • What is the AFC on ultrasound?
  • Are her periods regular?
  • Is there a pregnancy plan?
  • How long has pregnancy been attempted?
  • Has you had ovarian surgery before?
  • Do you have endometriosis or chocolate cyst?
  • Is there a family history of early menopause?
  • Are the tubes open?
  • How is your spouse's sperm analysis?
  • If in vitro fertilization has been performed before, how did the ovaries respond?
  • Is egg freezing necessary if pregnancy is to be postponed?

For example, a natural pregnancy plan can be evaluated in a 29-year-old woman who has low AMH but adequate AFC and wants to become pregnant soon.

In a 39-year-old woman with the same AMH value, time may be managed differently due to the effect of age on egg quality.

In a patient with low reserve who is scheduled for surgery due to a chocolate cyst, preserving the ovarian reserve and, if necessary, fertility preserving options are also discussed before the surgical decision.

The aim is not to treat the AMH level, but to determine the most appropriate timing by evaluating the patient's age, current ovarian reserve and goal of having children.

What Should Be Done If AMH Is Low?

When a low AMH result is obtained, proceed as follows:

  • The result is evaluated with age.
  • AFC is measured by ultrasound.
  • Menstrual and ovulation patterns are questioned.
  • The timing of the pregnancy plan is determined.
  • Endometriosis and ovarian surgery history are evaluated.
  • If pregnancy is attempted, the tubes and sperm factor are examined.
  • If necessary, assisted reproductive treatments are discussed.
  • If pregnancy will be postponed, fertility preservation options are evaluated.

It would be more accurate to consider the low AMH result as a clinical finding that gives information about timing, not just a laboratory figure.

When to Consult a Gynecologist and Obstetrician?

Evaluation should not be delayed in the following cases:

  • If your AMH result is found to be low
  • If you are planning a pregnancy and are concerned about reserve
  • If you are 35 or older
  • If you plan to postpone pregnancy for a few years
  • If you have a family history of early menopause
  • If you have endometriosis or chocolate cyst
  • If you have had ovarian surgery before
  • If chemotherapy or radiotherapy is planned
  • If your periods have become irregular
  • If you are having difficulty achieving pregnancy

The waiting period for pregnancy can be kept shorter around the age of 35 and beyond. If there is a pregnancy plan after the age of 40, it may be more appropriate not to delay the evaluation.

Common Misconceptions About AMH

“If AMH is low, you cannot get pregnant.”

Wrong. Low AMH does not completely prevent natural pregnancy.

“If AMH is high, I am very fertile.”

Wrong. High AMH can be seen especially in PCOS and does not mean regular ovulation.

“AMH indicates the quality of the eggs.”

Wrong. AMH is mostly related to the amount of eggs. Age is an important factor in egg quality.

“Low AMH means early menopause.”

Wrong. AMH alone does not determine the time of menopause.

“If AMH is below 1, in vitro fertilization is definitely required.”

Wrong. Treatment decisions are not made based on AMH alone.

“If there is a drug that increases AMH, the ovarian reserve will return.”

There is no proven treatment that shows this.

“If my periods are regular, my ovarian reserve is definitely good.”

Wrong. Women with low AMH may have regular menstruation.

“If there is normal AMH, age does not matter.”

Wrong. Normal reserve does not eliminate age-related egg quality variation.

Assoc. Prof. Dr. Nurettin Türktekin's Evaluation

AMH is a very valuable test in evaluating ovarian reserve. However, it is not correct to evaluate patients based on only a single laboratory result.

Especially in women with low AMH results, age, antral follicle count by ultrasound, menstrual cycle, pregnancy plan, and previous treatment results, if any, should be considered together.

Interpreting low AMH directly as "you cannot get pregnant" may cause unnecessary anxiety. On the other hand, considering low reserve as completely unimportant may lead to loss of time, especially in advanced age or in cases where pregnancy is postponed.

The purpose of clinical evaluation is not to try to increase the AMH value, but to interpret the current ovarian reserve correctly and determine which and when the patient needs natural pregnancy, in vitro fertilization or fertility preservation options.

Conclusion

AMH is an important test that allows evaluation of ovarian reserve in women; but it does not measure fertility alone.

Low AMH suggests that the remaining follicle pool in the ovary may be reduced, but it does not make natural pregnancy impossible. Similarly, high or normal AMH does not guarantee that pregnancy will occur easily.

When evaluating the AMH result:

  • Woman's age
  • AFC
  • Ovulation pattern
  • Tubes
  • Uterine structure
  • Sperm characteristics
  • Time of pregnancy plan

They should be considered together.

Especially in women with low AMH results, the goal is not to increase the laboratory figure, but to use the available reserves and time correctly.

It would be appropriate for women who are planning pregnancy, who postpone pregnancy to later years, who have a history of chocolate cyst or ovarian surgery, or who have low AMH results, to be individually evaluated by a gynecologist and obstetrician.

Frequently Asked Questions

The exact limit varies depending on the laboratory and age. Values ​​below approximately 1 ng/mL are often evaluated for decreased ovarian reserve; However, it does not make a diagnosis on its own.

Yes. Natural pregnancy is possible even if AMH is around 0.5 ng/mL. Age, ovulation, tubes and sperm factor should be evaluated together.

Very low AMH may suggest a significant decrease in reserve. However, the probability of pregnancy cannot be assumed to be zero just by looking at AMH.

In most cases, it can be done on any day of the menstrual cycle.

Not always. High AMH may be common in PCOS. The result should be evaluated together with menstrual pattern and ultrasound findings.

No. AMH is mostly related to the amount of ovarian reserve. Age is more decisive in egg quality.

Only no. AMH is not a test that reliably shows how long it will take to get pregnant naturally.

Yes. Low AMH does not prevent in vitro fertilization treatment. However, fewer eggs may be obtained during treatment.

There is no treatment proven to permanently increase the ovarian reserve and reliably increase AMH.

Some hormonal birth control methods may temporarily lower AMH and AFC measurements. The result should be evaluated together with the medications the patient uses.

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