If you are an adolescent girl and your period is delayed for more than 10 days for two consecutive months, consider that it is because the girl is relatively young, the ovarian gonadal function is not well developed, and irregular ovulation will indirectly lead to a delay in the menstrual cycle. The first five years of menstruation is normal and does not need to be treated. If a woman of childbearing age experiences a delay in menstruation for more than 10 days in two consecutive months, it is possible that ovarian endocrine dysfunction may be the cause of the abnormal manifestations, such as polycystic ovary syndrome or a decline in ovarian function. In this case, the 6 hormone tests should be performed 2-5 days after the onset of menstruation to check the ovarian secretion, and the ultrasound should be performed to see if the ovaries show polycystic changes.