Egg donation or oocyte donation is an altruistic process, in which young women of reproductive age decide to donate their eggs to help those who wish to have a baby. This process involves the careful selection of donors who meet specific health and age criteria.
Women are born with a limited number of eggs, about 1 million, which they lose over time, regardless of whether their reproductive health is in optimal condition. By puberty, there are about 350,000 eggs, and after 35 they begin to decrease until they are completely depleted at menopause.