Female amenorrhea has several major causes: First, it may be caused by psychological factors, some women usually too much psychological pressure, often inexplicable tension, menstruation before the arrival of irritability, emotional disorders and other problems will lead to endocrine disorders, triggering amenorrhea; Second, it may be caused by excessive dieting and weight loss, excessive dieting and weight loss has a great impact on the body, will lead to malnutrition, which will trigger endocrine Second, it may be caused by excessive dieting and weight loss, excessive dieting and weight loss has a great impact on the body, resulting in malnutrition, which can cause endocrine disorders, affecting the hypothalamus luteinizing hormone production, thus producing amenorrhea; third, it may also be caused by disease, women with anemia, malnutrition, premature ovarian failure and other diseases may cause amenorrhea symptoms, while environmental factors, dietary factors may also lead to endocrine disorders, which can lead to amenorrhea, it is recommended that timely medical care to find out the cause of the conditioning and treatment.