However, in a small number of cases an embryo won’t implant because the lining of the womb isn’t providing them with the right environment. Endometrial scratching, also known as endometrial injury, is carried out before IVF. During the procedure the lining of the womb (the endometrium) is ‘scratched’ using a small sterile plastic tube.
The endometrium is a layer of tissue that lines the inside of the womb. In the first step of a pregnancy, an embryo will attach to the endometrium in a process called implantation. Endometrial scratching, also known as endometrial injury, is a procedure undertaken to purposely disrupt the endometrium in women who want to get pregnant. It is thought this disruption may somehow increase the chance of an embryo implanting, creating a pregnancy. The theory is that this procedure triggers the body to repair the site of the scratch, releasing chemicals and hormones that make the womb lining more receptive to an embryo implanting. Some also suggest the treatment may activate genes that make the womb lining more receptive to an embryo implanting.
An endometrial scratch is a procedure carried out before IVF proposed to improve endometrial receptivity and increase the probability of pregnancy in women undergoing IVF by scratching the womb’s lining (the endometrium) using a small sterile plastic tube. It is generally only used for patients who have experienced multiple unsuccessful IVF cycles, despite the transfer of good quality embryos.