Anatomy
The endometrium grows under the influence of oestrogen and is then prepared for implantation by progesterone. In treatment cycles its thickness and pattern are checked by ultrasound before an embryo transfer, though a single measurement is only one part of the picture and there is no exact threshold that guarantees success.
Also known as: uterine lining, womb lining, lining
Sources
- Healthdirect Australia (healthdirect.gov.au)
- Pregnancy, Birth and Baby (pregnancybirthbaby.org.au)
Last reviewed: 10 September 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.