In a normal woman, 1 or 2 eggs are formed regularly each month. The main goal of the treatment for stimulation and development of eggs is to obtain a large number of good-quality eggs. Various hormone preparations are used to facilitate the development of eggs.

The reason for using these medications in IVF and similar assisted reproductive techniques is to increase the chances of achieving pregnancy by obtaining more eggs and embryos. Additionally, folic acid supplementation is started for the patient to prevent any abnormalities in the fetus’s nervous system.

Based on the patient’s age, ovarian reserve, and blood hormone levels, the most suitable treatment method and medication dosage are determined, and the treatment is initiated accordingly. For the treatment, on the second or third day of the patient’s menstrual bleeding, the ovaries are evaluated using basal ultrasound examination, and estrogen levels are measured in the blood.

Once the ovarian stimulation treatment begins, the patient is called in for regular ultrasound examinations at certain intervals. The purpose of these checks is to monitor the number and size of developing follicles. In IVF treatment, the goal is to obtain as many as possible, ideally 10-12 follicles, ranging in size from 16-20 mm.

Between the check-ups, hormone tests may be requested from the patient to adjust the medication dosage. At the same time, the endometrium lining the inside of the patient’s uterus is also evaluated and monitored through ultrasound examination. Egg development takes about 10 to 12 days. Towards the end of the ovarian stimulation treatment, the patient needs to come in for check-ups every other day. When the follicles reach a sufficient size, the final injection, known colloquially as the “trigger shot,” which contains HCG (Human Chorionic Gonadotropin), is administered to induce the final maturation of the eggs. Egg retrieval procedure takes place between 32 to 36 hours after the trigger shot is administered.