30%-50% of diabetic patients do not know they have the disease Zhang just over 46 years old, is the backbone of the unit, usually busy work, socializing also more. Last week, the unit organized a physical examination, fasting blood glucose 11mmol / L, to a city hospital after a review, confirmed the diagnosis of type 2 diabetes. Mr. Zhang asked, “I had a normal blood sugar checkup the year before, and now I don’t have any symptoms, I can eat and drink every day, and my body is strong, so how can I have diabetes?” Dr. Gao replied, “When the blood sugar is above 15 mmol/L (270 mg/dL) throughout the day, the patient will have typical symptoms of diabetes, such as: dry mouth, excessive drinking, excessive urination, easy hunger and weight loss. Some diabetic patients have no obvious symptoms of “three more and one less” when their blood glucose level is between 7mmol/L and 15mmol/L throughout the day, and are only discovered during physical examinations or when they are examined for other diseases. Some patients are not asymptomatic, but just ignore it. Diabetic patients’ family members, especially close relatives, are five times more likely to develop the disease than the general population. Middle-aged and elderly people reach middle age with increased life and work stress and mental tension. As a result of improved living conditions, more calories are consumed and less exercise is performed, resulting in lower caloric consumption. At the same time, various organs gradually aging, cell function gradually decline, etc., making this part of the population is prone to diabetes. Obese, especially abdominal obese people. Lack of exercise and unhealthy eating habits can lead to obesity. Obese people have obvious insulin resistance, which will increase the burden on pancreatic B cells and more easily trigger diabetes. People with hypertension and hyperlipidemia. They are risk factors for developing diabetes and are also the most common complications. Those who lack exercise exercise can increase insulin sensitivity in addition to burning calories and reducing obesity. Women who deliver a huge baby (weight > 4000 g). Those who have lost weight and cannot find the cause, while having a normal appetite. Those who are treated with glucocorticosteroids or diuretics for a long time. Smokers with long-standing ulcers on the limbs. In addition perineal itching, loss of vision, recurrent skin infections and pain or abnormal sensation in the lower limbs may also be atypical symptoms of diabetes Good lifestyle habits are the key to preventing diabetes. Eat more vegetables and other foods rich in dietary fiber, and eat appropriate coarse grains; avoid eating greasy foods and high-sugar foods; quit smoking and drinking; increase physical activity and avoid obesity; be cheerful, open-minded, optimistic, combine work and rest, and avoid excessive stress and strain; have regular health check-ups, etc. can well prevent and treat the occurrence of diabetes.