A woman who normally has a regular menstrual cycle suddenly experiences a delay of half a month in her menstrual cycle. First of all, for women who are sexually active, we should consider whether it is due to pregnancy that the menstrual cycle is delayed, and then we suggest that we buy test strips or pregnancy tests to test whether we are pregnant or not. If you are pregnant, no matter what medication you take, you will not get your period, and you must consider abortion or medical abortion to terminate the pregnancy, or continue the pregnancy. If you are not pregnant and your menstrual cycle is simply pushed back by half a month, you can go to the gynecology department of the hospital to check the ultrasound to see the thickness of the lining, and then consider whether to take progesterone to get menstruation or go to a Chinese medicine practitioner for an interview to prescribe Chinese medicines that invigorate blood circulation and eliminate blood stasis to make menstruation come.