The presence of follicles without ovulation is one of the female infertility factors ovulation disorders, which according to statistics account for about 25%-35% of the overall infertility factors. Every woman with ovaries is born with follicles, but she needs to go through childhood to puberty before the follicles may develop and ovulate. During the ovulation process, it is mainly dependent on the stimulation of gonadotropins. Normally, there is a monthly batch of follicles, but usually only one dominant follicle on one side can fully mature and expel an egg, while the rest of the follicles degenerate on their own at different stages of development. Clinically, when ovulation is disturbed, it will lead to the occurrence of non-ovulation. The main causes are: 1) organic lesions or dysfunctions of the regulatory centers of the brain, such as abnormalities of the hypothalamus or pituitary gland. Ovarian diseases, such as congenital ovarian dysplasia and polycystic ovary syndrome, etc. 3, abnormalities in the basic hormones that maintain the body, such as abnormal adrenal and thyroid function, can also affect ovarian function. In summary, if a woman has follicles in her menstrual cycle, but ovulation does not occur, it is a sign of ovulation disorder.