What is the shape of the follicle?

Follicles have certain shapes, and most of our follicles should be oval. If some other shapes appear, it is actually an abnormal situation. This situation should be taken seriously, otherwise it will lead to many problems. In addition to the shape requirements, the size of the follicle also has a certain range. So what is the shape of the follicle?

Eggs are produced in the female reproductive organ, the ovaries. When a woman is born, there are 100,000 to 500,000 primary follicles in each ovary. They are surrounded by a layer of primordial follicle cells, also known as granulosa cells, and a layer of basement membrane outside them. These primordial follicles grow in batches every moment throughout a woman's life, but more than 99% of them wither and degenerate into atretic follicles shortly after they begin to develop. During the reproductive period, only a few hundred follicles fully mature and release mature eggs.

Ultrasound monitoring shows that the largest follicle appears on the 10th to 16th day of menstruation. The follicle is 20mm in diameter, round in shape, with thin walls, protruding to one side of the ovary, and has good internal sound transmission. Ovulation usually occurs within 10 hours, and ovulation is more common on the 12th to 18th day of menstruation, and a few occur on the 20th to 30th day.