Suddenly working night shifts and staying up late may cause delayed menstruation. Staying up late and not resting well can also cause delayed menstruation. Suddenly working night shifts and staying up late may cause the body to be in a state of stress such as tension and exhaustion. In this state of stress, it is possible to cause endocrine disorders and delayed menstruation. In addition to fatigue, stress, anxiety, environmental changes, gynecological inflammation, endocrine disorders can lead to delayed menstruation, sudden night shifts and late nights lead to delayed menstruation, you need to consult a doctor to clarify the cause. Delayed menstruation in time to consult a doctor, if it is determined to be the factor of mental tension, you need to carry out psychological counseling, relaxation, eliminate the state of mental tension. Under the guidance of specialized doctors, appropriate treatment should be given according to the specific situation.