The decision of whether insulin can be stopped after taking insulin is based on the degree of damage to the islet function of the diabetic patient, etc. Type 1 diabetic patients cannot stop taking insulin because type 1 diabetes is a deficiency of insulin caused by a defect in the function of the pancreas, the patient has a wasted body type, almost total damage to the islet cells, a tendency to ketoacidosis, or repeated occurrences of diabetic ketoacidosis or hypertonic hyperglycemic state, and must rely on Patients with type 2 diabetes are caused by insulin resistance and relative insulin deficiency, and patients with no or mildly impaired islet function need insulin injections to lower blood glucose due to intensive insulin treatment or acute phase of diabetic complications or perioperative period. Treatment. Patients with high blood glucose should consult the endocrinology department in a timely manner and receive regular treatment under the guidance of a doctor.