Many patients have misconceptions about ovulation induction, believing that the stimulated follicles will “advance” many eggs, thus affecting ovarian function and even leading to premature ovarian failure. In fact, this concern is completely unnecessary. Ovulation promotion is to avoid atresia of non-dominant follicles through hormonal regulation, and it does not have the effect of “advancing” a large number of eggs in advance, and there is no risk of premature ovarian failure. Although the human egg is very precious, not every egg is a lucky one that can mature. At the beginning of puberty, there are about 40,000 primordial follicles in both ovaries, and only 400-500 eggs are ovulated during a person’s lifetime. So where do the rest of the follicles go? They are successively occluded at various stages of development. During the natural menstrual cycle, multiple eggs are aroused from the ovarian reserve pool each month to continue the process of meiosis. During the luteal phase or early menstruation, we can observe multiple sinus follicles under ultrasound, and the number of sinus follicles varies from a few to dozens in different individuals because of different ovarian reserve functions. However, as a single-born animal, only one follicle, the dominant follicle, develops each month, and the other non-dominant follicles are sacrificed without the chance to grow to maturity. It was not until scientists discovered that follicle development is regulated by reproductive hormones that we were able to regulate hormone levels to allow follicles that would otherwise be atretic to develop, thus increasing the number of eggs retrieved in a single session and reducing the pain of repeated egg retrievals. So there is no so-called “open source”, but rather a “throttling” effect that allows multiple follicles to develop. Does hormone therapy increase the risk of gynecological tumors? There is no need to worry about this. Clinical trials with large samples and basic research do not suggest that IVF medication increases the risk of breast cancer, endometrial cancer and other tumors. For patients with a history of polycystic ovaries, with follicle counts greater than 15-20 during ovulation promotion and estrogen levels higher than 5000 pg/ml, it is important to be aware of the risk of ovarian hyperstimulation syndrome (OHSS). Patients with mild cases can recover with rest and supplementation with water and protein. Severe cases are associated with the development of complications such as pleural and abdominal effusions and the risk of thrombosis. It is important to seek prompt medical attention, respond to the doctor with symptoms of discomfort and give symptomatic treatment. Once ovulation is complete, the egg retrieval stage is performed. The egg retrieval is the process of removing the eggs by inserting a puncture needle through the vagina into the follicles of the ovaries under the guidance of a vaginal ultrasound probe. The entire procedure is usually performed under anesthesia and usually takes less than 30 minutes. The risks associated with egg retrieval include bleeding, infection, etc. The incidence of vaginal bleeding after egg retrieval is approximately 0.5% and the incidence of intra-abdominal bleeding is less than 0.02%. The incidence of infection is about 0.03% to 0.6%. Therefore, for the majority of patients, egg retrieval is very safe with minimal damage. After going through a lot of tests, we were lucky to enter the transfer stage. The embryo transfer is done under ultrasound guidance by driving the embryo through a thin transfer tube into the uterine cavity. The whole process is non-invasive and even non-sensitive, and you can move around normally after the transfer as long as you lie flat for a while. IVF does not cause harm to the function of a woman’s ovaries or increase the risk of disease in other organs. You should adjust your mood, avoid excessive stress and anxiety, and get ready for the ovulation cycle.