Thin endometrial lining: how thin is too thin?

The lining  thickness is probably one of the most important parameters that predict the success of an IVF cycle

The uterine lining is the part of the uterus that sheds every months with  every menstrual cycle. It is the area where the embryo implants.

There is some debate about "how thin is too thin", as well as to "how thick is too thick". In general, 8-13 mm is good, less than 6 is potentially a problem, and greater than 15 or so might possibly reduce chances for successful pregnancy.

Additional factors can affect the lining , such as polyps, fibroids or adhesions.