It is clinically normal to delay your period for 1 week at a time, because not every woman’s menstrual cycle is considered normal until 28 to 30 days. If the menstrual cycle is not less than 25 days and not more than 40 days, it is normal. As long as the menstrual volume, color and time of menstruation are normal, there is no need to intervene in this clinical situation. However, if in addition to delayed menstruation, the amount of menstruation also changes, such as a significant decrease in the amount of menstruation, then it is clinically abnormal and requires a sex hormone six test and ultrasound examination, and then treatment will be given according to the results.