How does a girl not have a period for a month return a responsibility

Girls a month did not come period aunt, no sex life, occasionally postponed once, may be caused by work pressure is relatively large. If the work pressure is relatively large, mental tension, diet and irregular work and rest, it is likely to cause menstrual delay, as long as the attention to rest, relieve their pressure, pay attention to reasonable diet, under normal circumstances, menstruation will naturally come a few days later. If menstruation is often delayed, rule out no pregnancy, it is likely to be endocrine disorders, ovarian abnormalities, or polycystic ovary syndrome or other diseases, need to see a doctor in time to do relevant examinations, symptomatic treatment.