Why we do take a Egg Donor?

"Donor eggs -- and sometimes donor embryos -- allow an infertile woman to carry a child and give birth. ... Genetically transmitted diseases that could be passed on to your child. A previous history of failure with IVF, especially when your doctor thinks that the quality of your eggs may be the problem.

Egg donation is a process in which a fertile woman donates an egg, or oocyte, to another woman to help her conceive. It is a part of assisted reproductive technology, or ART."

https://www.indiaivf.in/egg-donation-procedure/