Generally speaking, when a woman's follicle develops and matures, an egg is released, which combines with sperm to form a fertilized egg before she can conceive. But now there are many women whose follicle development is not good enough, and some follicles cannot be discharged, requiring an ovum puncture needle for assistance. How big is the follicle that breaks the needle? Let's learn about it together with the editor below.
How big is the follicle that breaks the needle
If the follicle grows to more than 20 millimeters and has not yet ovulated, an ovulation induction needle is needed. Ovulation can be induced by intramuscular injection of chorionic gonadotropin, usually around 48 hours after injection.
How do follicles develop
⑴ Follicle appearance time: Multiple follicles develop simultaneously at the beginning of each menstrual cycle, but generally only one or two follicles develop to maturity, known as the dominant follicle, while the remaining follicles are subsequently blocked.
⑵ Follicle growth rate: Ultrasound can detect small follicles in the ovaries on the 3rd to 5th day of the menstrual cycle, which gradually grow and reach their maximum on the 14th day, indicating ovulation. From the 5th day of menstruation to ovulation, the average daily growth of the main follicle is 1.5mm; On the 10th day, the average daily growth was 1.2mm, and on the 4th day before ovulation, the average growth was 1.9mm until the follicle matured.
What are the characteristics of mature follicles
Mature follicles can display the following characteristics: ① Follicles are round or oval in shape, with a diameter of 15-30mm (21.2+-0.53mm), and there is an anechoic area inside the follicle, which is clear and pure, with clear boundaries and thin walls. ② 20% of mature follicles show cumulus images on the day before ovulation, with short strong echoes near the wall of the follicle.
With the advancement of medicine, pregnancy is no longer just out of reach for women with underdeveloped follicles. If infertility is caused by follicular development issues, female friends should actively seek treatment at the hospital and receive ovulation induction or rupture injections according to the doctor's guidance to increase the chances of conception.
