How big is the follicle before the egg can be retrieved?

Only when the follicles in a woman's body mature to a certain degree can normal eggs be produced. Otherwise, this will greatly affect the health quality of the eggs. Before IVF, doctors will take out the eggs from the female body and combine them with the male sperm. At this time, the size of the follicles is mainly considered. Whether the follicles are too large or too small, the quality of the eggs taken out will be problematic. So how big should the follicles be to be able to take the eggs?

1. How big does the IVF follicle need to be before the egg can be retrieved? Generally, the follicle size must be between 18-25mm to be considered mature, and egg retrieval can be arranged. Ovarian function, the patient's mood, and the ovulation induction plan will all affect the development of follicles. Patients with poor follicle development should not be too anxious. The doctor will adjust the ovulation induction plan according to the patient's specific situation and try to help the patient obtain the appropriate number of eggs.

2. Throughout a woman's menstrual cycle, there is only one chance of ovulation in the middle of the menstrual period. Generally, one mature egg is released from the left or right ovary. In rare cases, one mature egg is released from each ovary. In order to break the limitations of embryo transfer, in vitro fertilization generally adopts an ovulation induction program so that multiple eggs can be obtained for transplantation.

3. During the ovulation induction period, the doctor will monitor the patient's follicle development through B-ultrasound testing. The size of the follicles directly affects the progress of the entire operation, and patients hope that more follicles can develop and mature. So, how big does the IVF follicle need to be before egg retrieval can be performed?

4. After taking ovulation-inducing drugs, the growth and development of the follicles of each patient are different, so the time of egg retrieval will also be different. Some patients have better ovarian function and can arrange egg retrieval a few days after the ovulation injection; some patients may adjust the ovulation induction plan because the ovulation induction effect is not good, which may lead to a delay in egg retrieval.