A month’s delay of the period can be seen in the case of delayed menstruation caused by pregnancy and also in the case of delayed menstruation caused by menstrual disorders. For example, if the patient is pregnant, menstruation is definitely delayed. In this case, it is necessary to further check the blood HCG and gynecological ultrasound, according to the examination to decide how to deal with the next step. In addition, it can also be caused by menstrual disorders, if the patient recently work pressure, life stress, learning pressure, mental tension, emotional fluctuations, irregular routine and some changes in the surrounding environment, etc., may cause delayed menstruation this kind of situation occurs. Therefore, we need to further check the sex hormone six test, according to the sex hormone six test, and then decide the next step of treatment.