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Anti-Mullerian Hormone (AMH)

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Updated January 12, 2010

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Definition:

Anti-mullerian hormone, or AMH, is a protein released by the ovaries and is related to the development of follicles in the ovary. Blood work to check AMH levels may be done as a part of fertility testing.

AMH levels correspond to the number of antral follicles, which can be used to indicate the number of eggs available in the ovaries. A very low level of AMH may indicate poor ovarian reserves. A very high level of AMH may correspond to PCOS.

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