The woman receives a hormonal treatment to stimulate ovulation. The aim is to achieve a better response than that obtained from a natural cycle, and hence, have a suitable number of oocytes to work with in the lab in order to maximise the possibility of success.
Treatment must be personalised. The doctor controls the exact days in which to administer the medication and the correct dose. The growth of follicles must be monitored until they reach the right size by vaginal ultrasound scans and hormonal analyses.
When the number and size of the follicles is correct, their rupture is induced with adequate medication.