In the process of taking Wu Ji Bai Feng Wan found that the menstrual period appeared to be delayed phenomenon, if there is a normal sex life, must rule out the possibility of pregnancy, you can use the morning urine to do early pregnancy test, you can also go to the hospital to draw blood to check the blood HCG, to understand whether it has been pregnant. If there is no pregnancy, itself, Wu Ji Bai Feng Wan has the effect of regulating menstruation, especially for the qi and blood deficiency, the body is relatively weak, often the waist and knees sore and weak women, will play a very good role in regulating, so in the process of taking Wu Ji Bai Feng Wan the vast majority of the menstruation will not be delayed phenomenon. If menstruation is delayed and the possibility of pregnancy is ruled out, it is necessary to find out whether there are other diseases, such as whether there is pelvic tuberculosis, whether there is abnormal ovarian function, or whether there is polycystic ovary syndrome, etc., and then give appropriate treatment after examination.