Ketoacidosis can be classified as mild, moderate or severe according to its ketone body content in the body. Mild refers to blood ph<7.3 or HCO3-<15mmol/L in the body; moderate ph<7.2 or HCO3-<10mmol/L; severe ph<7.1 or HCO3-<5mmol/L, which is also the most likely to put patients into coma. Preventive measures mainly include: 1. Develop good dietary habits Diabetic patients are sensitive to changes in blood sugar, especially type 1 diabetes, should try to eat less and more meals, quit smoking and drinking, prevent overeating, and must change the eating habits of starving one meal and full one meal. Strictly follow the standards recommended for diabetes recovery and control your diet consistently to ensure smooth blood sugar fluctuations. 2, learn diabetes Only doctors can cure the disease, why do I need to learn? In fact, the body is your own, and only you know your own situation best. Diabetic patients and their families should learn and master the basic knowledge of diabetes, and understand the pathogenesis and hazards of diabetes and its possible complications. To improve their own knowledge of diabetic ketoacidosis, in order to better prevent diabetes. 3, adhere to the appropriate daily exercise exercise not only can strengthen the body, for diabetic patients to improve the use of glucose, more important. Diabetes treatment guidelines clearly state that exercise is the most effective and should be maintained for life. Adhering to a daily exercise of gentle intensity for 20 minutes, such as jogging, walking, boxing and swimming, can effectively control blood sugar and prevent ketoacidosis. 4, strict control of blood sugar Have to face is that type 1 diabetes patients are required to take drugs for life, want to minimize including ketoacidosis, diabetic foot and other serious complications, you must strictly follow the doctor’s instructions for drug treatment. Although the process of taking medication is very long, it is important not to reduce or stop medication on your own, let alone stop using medication because you believe that herbal remedies can replace Western medicine. Regular follow-up visits to the hospital for blood glucose testing will enable your doctor to better help you control your blood glucose levels. 5. Prevent infection Infection is an important trigger of ketoacidosis, especially in elderly and frail patients, who should pay attention to personal dietary hygiene and prevent catching cold and flu. Once discomfort (such as cold, fever, diarrhea, etc.) occurs, you should go to the hospital as soon as possible. After introducing so many prevention methods, the specific implementation should be combined with individual differences, and if you have any questions, you can consult your clinician, and I believe you can all prevent ketoacidosis well.