Patients with type 2 diabetes, if the blood glucose control is ideal basically does not affect the survival cycle, if the control is poor, may affect the survival cycle to a certain extent, it is recommended that under the guidance of the doctor reasonable treatment. Often in patients with type 2 diabetes mellitus, poor glycemic control due to no treatment or poor treatment compliance may lead to diabetic complications. Diabetic complications include acute complications (diabetic ketoacidosis and hyperosmolar hyperglycemic syndrome) and chronic complications (atherosclerosis and peripheral neuropathy). Acute complications are usually more acute and may lead to sudden death to a certain extent. Chronic complications, such as macrovascular and microvascular disease, diabetic peripheral neuropathy, etc., lead to an increase in cardiovascular and cerebrovascular complications, which reduces the survival cycle of the patient. Patients with diabetes are advised to consult an endocrinologist for treatment under the supervision of a physician.