Usually, most of the follicles are small because of ovulation disorders. The normal mature follicle size range is 18-25mm, below or above this standard, can lead to ovulation disorders. There are several causes of ovulation disorders, namely, central nervous system ovulation disorder, hypothalamic ovulation disorder, pituitary ovulation disorder, ovarian ovulation disorder, polycystic ovary syndrome, etc. In addition to gonadal ovulation disorders, other endocrine system disorders may also cause ovulation failure, such as thyroid and adrenal cortex dysfunction and systemic diseases such as severe malnutrition. It is recommended to have a blood test for endocrine and ovarian function within 2-5 days of menstruation under the guidance of a doctor to clarify the cause in time and then provide targeted treatment. In addition to clarifying the cause and treating the cause, you should also pay attention to rest, relax your mind and avoid spicy food. Hormonal cycle therapy plus ovulation treatment is also an option, as ovulation treatment alone may not always be effective. After ovulation treatment, women can use ovulation test after 5 days after menstruation. If a positive test is found, it indicates normal ovulation. In addition, you can also observe the changes in your leukorrhea to determine if you are ovulating. Usually, during ovulation, a woman’s leukorrhea increases significantly and the degree of straining is very large, which indicates that she is ovulating. During this time, you can use ovulation test paper to detect the specific day of ovulation, and have intercourse on the day of ovulation to have the best chance of pregnancy.