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Anti Mullerian Hormone

About

Anti-Mullerian Hormone, or AMH, is a hormone produced by the ovaries. In particular, it is produced by the follicles which contain eggs within the ovary. Levels can indicate how high or low a woman's ovarian reserve is.

Anti Mullerian Hormone is not routinely measured in men. It may be used by specialist fertility clinics in assessing sperm production.

What might a low result mean?

In women, low AMH levels indicate a poor ovarian reserve, which may correlate with low fertility. This does not mean that a woman with low AMH levels cannot become pregnant as there are many factors which influence a woman's chances of conceiving.

What might a high result mean?

High levels of AMH in women indicate rich ovarian reserves. This is not to say that a women with a high AMH level will always conceive, as there a many factors which affect fertility.

Very high levels of AMH can be found in women with polycystic ovarian syndrome (PCOS). This is because women with PCOS have much high numbers of immature follicles, and therefore produce excess AMH.