Ovarian Reserve Testing: AMH, FSH and What They Mean

There isn't a specific size used as a strict benchmark — even small fibroids can require removal if they are causing a cornual blockage, and submucous fibroids or polyps will usually require removal regardless of size. But anything bigger than roughly the equivalent of a 12–14 week pregnant uterus is a very large fibroid that definitely requires removal. On medical management: GnRH antagonists such as elagolix are used to help shrink fibroids, as are GnRH analogues/injections like leuprolide, which reduce the size of the uterus. However, submucous fibroids — the main culprits behind infertility — often will not respond well to medical management.

We need a good, plush endometrial lining, and if it isn't good we have medicines that can improve it. For example, in a recent case of severe intrauterine adhesions from a missed abortion managed elsewhere, the endometrial thickness was under 1mm in places and completely scarred. We did adhesiolysis and then gave a combination of estrogen and progesterone — estrogen helps regenerate the endometrium. It takes about 3 months for regeneration, though outcomes depend on how bad the scarring is; in some patients with very severe scarring we may not be able to regenerate a good lining at all.

We generally say at least 3 to 4 months of contraception should be used, and conception should not happen within that window.

There are now government of India guidelines on this. Strictly by those guidelines it is 50 for the woman and 55 for the man, though this used to be more liberal — we used to see people at 60–65 also getting IVF done, before the ethical question of who will care for the children led to the cutoff being tightened.

After adhesiolysis we give a combination of estrogen throughout the cycle and progesterone added in the last 14 days, and it takes about 3 months for regeneration, confirmed with transvaginal sonography for endometrial thickness before and after. Many patients start to show improvement even after about a month and a half, where the scarring and adhesions are not so severe that they have permanently damaged the endometrium.

Follicle stimulating hormone, or FSH, is preferably tested on day two of the patient's period, and very high FSH levels may affect IVF results, making it an important early marker of ovarian function.

Anti-Mullerian hormone, or AMH, indicates how many eggs are available, since every woman is born with a fixed number of eggs that declines with age.

There is a concerning trend of increasingly low AMH levels even in younger patients, linked to people marrying and considering conception later in life.

Ovarian reserve testing through AMH and FSH, alongside antral follicle count on ultrasound, gives fertility specialists a realistic picture of a patient's egg supply, helping set appropriate expectations and guide treatment planning.