Endometrial lining is routinely measured using the vaginal ultrasound in IVF cycles and is expected to be of adequate thickness for pregnancy.
An endometrial thickness of 8 mm or greater is generally considered adequate thickness and less than 7 mm has been associated with lower pregnancy rates, with almost no pregnancies observed with a lining less than 5 mm.
It is not rare to encounter women with thin endometrium. The cause can be hormonal, infectious, stress, previous surgical intervention, unhealthy lifestyle, etc.
The treatment depends upon the cause of Thin Endometrium. Sometimes is correctable by balancing the hormonal disturbance, hysteroscopic correction, treatment of infection or any other underlying disorder.