The hormone also goes by the name Mullerian-inhibiting substance.
AMH levels are directly related to how many small follicles are found on the ovary each month.
These are called antral follicles.
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Ovarian Follicles and AMH
Antral follicles are also called resting follicles.
Throughout the menstrual cycle, follicles pop up on the ovaries and go through changes.
Antral follicles are in the later stages of development.
Eventually, the follicles get to the end of their development and become mature.
A mature follicle has the potential to release an egg.
This is called ovulation.
The more antral follicles a person has, the higher their AMH levels will be.
Doctors can use a persons AMH levels to estimate how many follicles a person has.
This is known asovarianreserve.
Knowing this number can be helpful in some fertility situations.
Recap
The more antral follicles a person has, the higher their AMH levels will be.
A persons AMH level can help their doctor estimate how many follicles they have.
This information can give them clues about a persons fertility.
AMH and PCOS
People who havepolycystic ovary syndrome (PCOS)have a lot of antral follicles.
This means they also have high levels of AMH.
High AMH levels can suggest PCOS in people who may not have symptoms of the condition.
Having too much AMH can stop ovulation from happening.
In a normal ovary, AMH keeps the follicles from developing too early.
If this happened, they would release an egg that isnt ready yet.
People with PCOS tend to have high AMH and a lot of antral follicles on their ovaries.
High levels of AMH can stop an egg from being released from the ovary even if its ready.
That means ovulation does not happen.
What AMH Levels Mean
AMH levels can be measured with ablood test.
A person can have their blood taken on any day of their menstrual cycle.
Doctors compare a persons age to their AMH results to make a diagnosis.
The AMH test can also be useful for people who know they have PCOS.
People with PCOS who have higher levels of AMH tend to have worse symptoms.
People with PCOS who have higher levels of AMH also tend to have worse symptoms.
The more antral follicles a person has, the higher their AMH level will be.
AMH levels can help diagnosepolycystic ovarian syndrome(PCOS).
People with the condition often have AMH levels that are high.
Sometimes, its hard to diagnose PCOS because a person may not have specific symptoms.
They might also think that common PCOS symptoms like acne are being triggered by something else.
A person who has PCOS may have worse symptoms if their AMH level is high.
If you have symptoms of PCOS, talk to your doctor.
Having your AMH level checked can help your doctor figure out if you might have PCOS.
605: primary ovarian insufficiency in adolescents and young women.Obstet Gynecol.
773: the use of antimullerian hormone in women not seeking fertility care.Obstet Gynecol.
2019;133(4):e274-e278.
doi:10.1097/AOG.0000000000003162
Mayo Clinic Laboratories.Antimullerian hormone, serum.
National Institute of Child Health and Human Development.How do health care providers diagnose PCOS?
Christ JP, Cedars MI.Current guidelines for diagnosing PCOS.Diagnostics (Basel).
2023;13(6):1113. doi:10.3390/diagnostics13061113
