AMH – Anti-Muller’s hormone is produced by follicles in the ovaries containing immature egg cells. The level of AMH hormone correlates with the number of follicles ready to take up growth (i.e. release of a mature, ready to fertilize egg). Thanks to this, on the basis of AMH levels in blood, it is possible to estimate the reproductive potential, the so-called ovarian reserve. A low (below 0.7 ng/l) AMH level suggests that there is probably little time left to get pregnant. It is worth remembering that the AMH level decreases with age, but a single AMH level score does not give information about the dynamics of AMH changes – in some women it can decrease very quickly, significantly reducing fertility, in others it can remain low for some time, not excluding the chances of getting pregnant.
AMH level is also a good marker of response to pharmacological ovarian stimulation used in assisted reproduction techniques. In the case of low AMH levels, we can expect a weak ovarian response to the stimulation and thus the collection of few oocytes. In case of high AMH level (above 5 ng/l) there is a risk of ovarian hyperstimulation syndrome. For high AMH levels special safe stimulation protocols are used.
The determination is made from blood serum. The blood can be collected on any day of the cycle, there is no need to be fasting. The result is available the next day at the latest.