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

There are many ways for women to get pregnant. In addition to normal pregnancy, they can also have in vitro fertilization. There are certain differences between test tube follicles and ordinary follicles. When taking eggs from test tube follicles, there are certain requirements for their size. We can check the size of the follicles through B-ultrasound. When they reach a certain size, our test tube follicles can be taken out. So how big can the test tube follicles be for egg retrieval?

As for the timing of monitoring follicles before in vitro fertilization, doctors usually decide based on the patient's physical condition. During the monitoring period, B-ultrasound can be used to discover and understand the number and size of the follicles that are induced to grow, and then the dosage and duration of ovulation-inducing drugs can be appropriately adjusted based on the monitoring results. Generally speaking, on the 10th-12th day of the menstrual cycle, the number of dominant follicles can reach 2-3, and can develop to a size of 40px. However, you cannot rush to retrieve the eggs at this time. The time to inject HCG should be determined based on the thickness of the endometrium and the urinary LH peak.

For women who are planning to have a baby, it is important to monitor ovulation. If your menstrual cycle is regular, then your ovulation period is probably between the 11th and 17th day of your menstrual cycle. Therefore, you can start monitoring ovulation from the tenth day of the menstrual cycle. Go to the hospital for an ultrasound to monitor ovulation, and monitor it every other day. Theoretically, the 14th day should be the ovulation day.