Irregular periods do not clinically affect intercourse, but when there is vaginal bleeding, sexual intercourse is not allowed. In spite of irregular periods, some people may ovulate, so it is important to use contraception during intercourse, and it is advisable to use condoms during the whole sexual intercourse. For irregular menstruation, it is also important to have the appropriate clinical examination and treatment. Ultrasound is recommended to find out the condition of the endometrium and, if necessary, to perform a diagnostic curettage. It is also necessary to find out whether the sex hormones are normal and whether the thyroid function is normal, and then give the appropriate clinical treatment according to the results. In addition, for patients with irregular menstruation, it is also recommended to develop good habits, not to stay up late and to keep a happy mood, which will also play a positive role in the improvement of menstruation.