During egg donation treatment, a woman has to have ovarian stimulation done. For this purpose, she will inject herself with a series of hormonal drugs to produce multiple ovarian follicles at the same time. There are 3 types of hormonal drugs that are administered during the cycle: gonadotropins, GnRH analogues and finally hCG hormone.
The doctor will give instructions to the donor on the medicines to be administered and she will visit the clinic regularly to carry out the controls until the follicles reach a size of 16-18 mm. At this time, the specialist will schedule the puncture and 32-36 hours before the donor will receive the hCG injection to induce ovulation.