Delayed menstruation, also known as menstrual diffusion. It is mostly caused by blood deficiency, uterine cold, phlegm and dampness and blood stasis. Blood deficiency is mostly caused by staying up all night, exertion, or insufficient protein food, or excessive drinking of soup affects the absorption of protein food, manifested as delayed menstruation, low volume, medium color, some dark, thin tongue, dark red tongue, easy to limb numbness, suitable for treatment of Si Wu Tang or Wu Ji Bai Feng Wan, usually pay attention to increase the intake of protein food, eat with less soup, avoid staying up all night and exertion. Some blood deficiency type menstrual diffusion is seen after the cold, cold when the dispersal of wind or antibiotics anti-infective treatment are depleted Yin blood, resulting in menstrual diffusion, so before the menstrual cold to pay attention to nourishing blood, less dispersal and anti-inflammatory treatment. The menstrual diffusion period of the uterine cold type is mostly caused by the congenital kidney Yang deficiency, the acquired diet improper spleen and stomach deficiency cold, liver meridian Yang deficiency. The congenital kidney Yang deficiency is manifested as the first menstruation diffusion period, usually delayed menstruation, sometimes several months a line, line cold, fear of cold, menstruation diffusion period, low menstrual volume, examination of some small uterus, small breasts, it is appropriate to supplement the kidney Yang, appropriate placenta (Zi He Che), Xian Mao, Epimedium, Cuscuta, cinnamon, sapodilla and other medicines, usually less time cold, bitter cold food. Spleen and stomach deficiency cold caused by the uterine cold because of fasting diet, do not eat breakfast, breakfast, starchy food, too much cold food, or have a serious diarrhea, manifested as delayed menstruation, low volume, light color, sometimes dysmenorrhea, like warm like press, like hot food, poor appetite, easy diarrhea, tongue body fat, tongue coating thick and greasy, it is appropriate to pay attention to breakfast, increase starchy food, rice, steamed bread to nourish the stomach and intestines, avoid drinking water on an empty stomach The treatment should be based on the following principles Liver meridian Yang deficiency type menstrual diffusion, mostly seen in the usual late wake up, less exercise, manifested as cold hands and feet, fear of cold, fatigue, laziness, menstrual diffusion, the amount of medium, not smooth, dark red quality. It is advisable to get up early, preferably at 7-8 o’clock, increase exercise, and treat with Chai Hu, Hovenia, Gui Zhi, Chuan Xiong and Angelica by warming and dispersing the menstrual channels.