Diabetic ketoacidosis refers to the serious lack of insulin or glucagon rapid increase in sugar, protein, fat metabolism disorders, the specific causes of infection, alcoholism, severe starvation and so on. 1 infection: infection and other stressful situations, diabetic patients will rapidly increase blood glucose, and blood glucose utilization disorders, causing a large amount of fat decomposition, in the metabolic process will cause the production of ketone bodies, resulting in diabetic ketoacidosis. 2. Alcohol poisoning: ethanol can directly induce the formation of ketone bodies; a large increase in ethanol content will also affect the formation of glycogen. Both can induce diabetic ketoacidosis. 3. Severe starvation: severe starvation state, the body glycogen reduction, further will consume body fat, fat catabolism increase can also lead to ketoacidosis. There are many causes of diabetic ketoacidosis, it is recommended to check and treat under the guidance of a doctor.