The symptoms of diabetic ketoacidosis are usually curable if treated promptly and regularly, but diabetes cannot be cured. However, it may not be curable if the disease is long, the underlying condition is poor or the treatment is not timely, resulting in serious conditions such as organ failure. Early manifestations of diabetic ketoacidosis patients are the aggravation of the original diabetic symptoms (polydipsia, polyphagia, polydipsia, weight loss, thirst, etc.), accompanied by the appearance of weakness, drowsiness, fatigue, loss of appetite and so on. At this time, timely treatment such as rehydration and insulin supplementation, as well as active removal of the cause of the disease, can effectively remove ketone bodies and lower blood glucose, and the symptoms are likely to be cured. If there is no timely treatment or the underlying condition is poor, the further development of the disease will occur when the breath is deep and large, the breath smells like rotten apples, and in the later stage of the disease there may be symptoms such as dehydration, drowsiness, impaired consciousness, coma, etc., which may lead to multiple organ function damage, resulting in irreversible organ failure, and this kind of situation is not curable. Therefore, when diabetic ketoacidosis occurs, patients should go to regular hospitals for timely treatment, and actively seek and eliminate the causative factors to prevent and control complications.