Usually the causes of cold body are as follows: First, the most common factor is the infectious factor, in bacterial, viral, atypical pathogens and fungal infections will appear in the cold body and other factors, especially in infectious shock, or septic shock, or hypovolemic shock, there will be the body abnormally cold, pulse rate is thin and fast, pallor, drop in blood pressure, peripheral skin cyanosis or florid, etc. Serious adverse reactions. At this time, immediate rehydration therapy is required. Second, in addition to infectious factors, the most common factors are metabolic disease factors, such as metabolic activity of the body, heat production increases while heat dissipation decreases will also appear the above clinical symptoms, such as hypothyroidism, adrenocortical insufficiency, will also appear the body ice cold and other clinical symptoms. Thirdly, the aging and physiological decline of the organs in the elderly will also cause coldness.