Anti-Mullerian Hormone (AMH) Test

The AMH test evaluates the level of anti-müllerian hormone in the blood sample. AMH is a hormone produced by the gonads. In males, the testicles and in females, the ovaries produce AMH.

The role of AMH, as well as its amount, varies by gender and age. This test detects the presence of AMH in the blood.

The role of AMH is vital in the development of the sex organs of the baby in the womb. The reproductive organs of a baby mature in the first weeks of pregnancy. The baby will be born with the genes to be either a male (XY genes) or a female (XX  genes).

AMH reduces the development of female organs while enhancing the growth of male organs. In male baby (XY) genes, high levels of AMH and other male hormones are produced. In boys, the AMH range remains high till puberty and begins to decrease after that.

If there isn't enough AMH to prevent the formation of female organs, organs for both sexes are formed. Then, it is unclear to determine if a baby's genitals are male or female. It is known as Ambiguous Genitalia.

In a baby with female (XX) genes, a minute level of AMH is produced.

Female reproductive organs develop due to this AMH. In young girls, AMH levels stay low until adolescence. During adolescence, ovaries (glands that produce egg cells) begin to form AMH.

A female has roughly one million eggs (oocytes) at birth. The oocytes decline to about 500,000 during childhood. Only a minute percentage of these remaining eggs will mature into follicles. The eggs grow mature one at a time throughout a woman's monthly menstrual cycle. During the process of egg maturation and release, AMH has a crucial role.

AMH levels then gradually decrease in women after their reproductive years. It becomes undetectable after menopause.

The AMH test levels in women can detect fertility issues and the ability to conceive. The test can potentially diagnose menstrual abnormalities.

An AMH test is commonly used to determine a woman's ability to create fertile eggs for pregnancy. In the reproductive age group, the ovaries produce hundreds of eggs. As a woman gets older, the egg number decreases.

A woman's blood AMH values indicate how many viable egg cells she still has. This is her ovarian reserve.

A woman with a high ovarian reserve has more chance of getting pregnant. If a woman's ovarian reserve is low, her chances of getting pregnant decrease.

The AMH test helps the doctor track the health of women who have specific types of ovarian cancer. The AMH test is used for the diagnosis of ovarian cancer.

In infants (males), the AMH test evaluates testicular functions. The test is repeated every three months in boys who are under treatment for testicular dysfunction.

In young girls, the AMH test helps to detect the cause of male traits.

In adolescent women, the AMH test assesses the number of eggs that are remaining. With the AMH test, women can understand their chances of getting pregnant and identify the onset of menopause.

Other Names of AMH Test

• MIH
• MIF
• Müllerian-inhibiting substance
• MIS
• AMH hormone test
• Müllerian-inhibiting hormone
• Müllerian inhibiting factor

What does the Test Detect/Measure?

The AMH ideally measures the levels of anti müllerian hormone in the blood sample.

Who is the Test Prescribed for?

The AMH test is prescribed for the following conditions:

• To determine a woman's ability to create fertile eggs.
• To determine a woman’s ability to conceive via IVF (in-vitro fertilisation) treatment and whether she will respond well to the treatment.
• In the diagnosis and prognosis of ovarian cancer.
• To detect early menopause.
• For gender differentiation in infants in case of ambiguous genitalia.
• To check the testicular function in newborn males.
• To diagnose Polycystic Ovarian Syndrome (PCOS). Symptoms of PCOS include:
• Irregular menstrual cycles
• Early menopause
• Amenorrhea
• Acne on the face, neck, and back
• Excessive hair growth on the body and the face
• Sudden weight gain
• Acanthosis nigricans or blackish-purplish discolouration of the skin due to insulin resistance

The AMH test requires a blood sample for testing.

Test preparation

This test does not require any special preparation. You can get the AMH test done at any time of the day, along with your other blood tests or as a single blood test.

Test inclusions: What are the parameters included?

The AMH test measures the levels of the anti müllerian hormone in the body.

PCOS, Infertility, Ovarian cancer, Early menopause

The AMH normal range in females is as follows:

Your age and gender determine the normal range of the AMH results. Talk to your health care provider if the values are beyond AMH normal range.

The normal values, parameters, and reference ranges of the test may vary from lab to lab. Please refer to the ranges mentioned in the report and consult a doctor to understand the interpretation of lab reports.

In infant (male)

Low amounts of AMH in a male child may suggest a problem with the AMH gene on chromosome 19. This chromosome controls AMH production and is associated with malfunctioning testicles. Male hormone deficiency can induce ambiguous genitalia and abnormal reproductive organs.

A low level of AMH in a male child could indicate hereditary problems. Below normal AMH range in boys is an indication of hormonal issues.

A male child with undescended testes might have AMH normal range and androgens. These AMH results suggest that testicles are present and functional at some other location. Surgery and hormone therapy can be used to treat this disease.

In women

Higher than normal AMH levels indicate polycystic ovary syndrome. And if the AMH level is low, it's an indication of low fertility. Low AMH could also be an indication of perimenopause. It is normal for young girls and women after menopause to have low levels of AMH.

AMH levels also indicate the prognosis of treatment in cases of ovarian cancer.

The AMH test results help fertility specialists in interpreting the fertility rate. It can also assist in determining when one should try to get pregnant. A high value of AMH within the normal range may indicate that the chances of becoming pregnant are better. The higher the AMH levels within the normal range, the better the chances of getting pregnant.