Diabetic ketoacidosis can be recovered within 3 to 5 days through timely and standardized treatment, but if the treatment is not timely, the duration of the disease is longer, the condition is more severe or the patient’s basic condition is poor, it takes a week or more to recover, and some severe patients may have difficulty in recovering. Diabetic ketoacidosis is an acute complication of diabetes mellitus. Early clinical manifestations of the patient are aggravation of diabetic symptoms such as thirst, polydipsia, polyuria, accompanied by the appearance of weakness, drowsiness, fatigue, loss of appetite and other manifestations. After timely treatment with insulin and rehydration, the disease usually returns to normal within 3 to 5 days. However, if the treatment is not timely, the duration of the disease is longer, the condition is more serious or the patient’s basic condition is poor, the further development of the disease may appear dehydration, drowsiness, impaired consciousness, coma and other symptoms, and it will take a week or more to recover, and some of the seriously ill patients have organ failure, which may be difficult to recover. Patients with ketoacidosis need to go to the hospital in a timely manner, under the guidance of the doctor to actively treat, to avoid delays in the condition resulting in adverse consequences.