Most diabetic patients have a combination of symptoms such as cardiovascular and cerebrovascular disease. In winter, the change in climate and lower temperatures can lead to an increase in blood sugar, which can also induce myocardial infarction and cerebral infarction and cardiovascular and cerebrovascular complications. ”Insulin resistance becomes more pronounced when it’s cold, and even when injected (insulin) doesn’t work well, making it difficult to control blood sugar.” At the same time, cold stimulation can cause enhanced vasoconstriction, which raises the body’s blood pressure and increases the incidence of heart and brain infarction. Therefore, diabetic patients should frequently measure blood pressure and heart rate; pay attention to the presence of dizziness and chest tightness and other cardiovascular and cerebrovascular symptoms, once the abnormalities should be dealt with in a timely manner. The winter is another complication of diabetes, “diabetic foot” season, the cold will make the patient’s foot blood circulation is impaired, there is sluggishness, hypoesthesia and numbness, etc.. ”So, the theme of winter diabetic patients is to keep warm, while maintaining foot circulation”, it is recommended that elderly patients can use the foot soak to keep warm and maintain blood circulation, but foot washing and hot water soaking feet to pay attention to the water temperature, about 45 ℃ is appropriate to avoid burns; trimming toenails to be careful not to cause injury, once there Foot rupture, etc., should be immediately to the hospital. For many elderly people are keen to use hot water bags in the winter to warm up the situation, experts say that diabetic patients should be cautious with hot water bags. Because most diabetic patients have taste circulation disorders, peripheral neuropathy, when the local skin contact hot water bags for a long time, the heat slowly penetrate to reach the skin irreversible injury temperature, “many patients because of the damage to nerve perception, even if they are scalded and do not know, and even deeper trauma, some deeper to the bone”.