19-year-old menstruation delayed to what reason?

19-year-old menstruation delayed reasons generally include mental psychological factors, rapid weight changes, endocrine disorders, etc. 1, mental psychological factors 19-year-old may face academic pressure, interpersonal problems, long-term anxiety, tension and other adverse emotions may affect menstruation through the neuroendocrine system. 2. Rapid weight change The substantial increase or decrease in weight will also affect endocrine, affecting hormone synthesis, resulting in menstrual disorders, manifested as delayed menstruation. 3. Endocrine disorders Adolescent women's endocrine system may not be completely stable, mood swings, excessive stress, irregular schedules, etc. may lead to hormone levels imbalance, which in turn affects menstrual cycles. For example, staying up late for a long time may disrupt the biological clock, affect the normal function of the hypothalamic pituitary ovarian axis, and make menstruation unable to come on time. If menstruation is delayed for a long time or accompanied by other discomfort symptoms, it is recommended to seek medical attention in time, conduct relevant examinations, such as ultrasound examination, sex hormone determination, etc., to clarify the cause, and carry out targeted treatment and conditioning under the guidance of a doctor. At the same time, maintaining a healthy lifestyle, such as regular rest, reasonable diet, moderate exercise, maintaining a good attitude, etc., is also very important for maintaining normal menstruation.