Endometrial Thickness: Stages, Effects And Treatments

A thickness of 8-12 mm during the implantation window is considered ideal for pregnancy. This thickness is deemed as an ideal amount, or it creates a healthy and supportive milieu to implant and grow in for a fertilized egg.

The endometrial lining changes every month during the menstrual cycle. After some time, it is thin (2–4 mm). Before ovulation, it thickens (5–7 mm). It grows about 8–14 mm after ovulation in order to support pregnancy. It is released at menstruation when no pregnancy takes place. If not for menopause or health problems, it will continue forever.

Hormonal medications like birth control or fertility treatments can alter endometrial thickness, either thinning or thickening it.