Menstrual disorders caused by frequent late nights are the result of irregular living habits that lead to a decline in one’s condition and cause menstrual disorders. It is easy to cause deficiency of qi and blood and endocrine disorder by staying up late, you can take medicine to nourish qi and blood. In daily life, you should keep your mood relaxed, ensure enough sleep, avoid staying up late, and try not to eat spicy and stimulating food. If you still do not get your period after lifestyle adjustments, you can take menstrual stimulants under the guidance of your doctor. There are many factors that can cause irregular menstruation, besides staying up late: a. Long-term mental tension or anxiety. Second, cold or eating cold food. Excessive dieting leads to insufficient energy intake, a large amount of fat and protein is consumed, and estrogen synthesis is impaired, leading to menstrual disorders and even amenorrhea. Fourth, excessive alcohol consumption and smoking are also likely to cause menstrual disorders in women.