How long a 30-year-old can live with diabetes depends on the patient’s own condition, and if there are no serious complications, the patient’s life expectancy will not be greatly affected. There is no necessary relationship between diabetes and life expectancy. As long as the patient’s blood glucose control is stable and no complications occur, life expectancy is generally not affected. On the contrary, if the patient’s blood sugar control is unstable and the earlier the chronic complications appear, the shorter the patient’s life expectancy will be. If a patient has an episode of acute complications due to poor glycemic control, such as diabetic ketoacidosis, diabetic lactic acidosis, hyperosmolar hyperglycemic syndrome, etc., the onset of the disease is usually acute and severe, and untimely treatment may be life-threatening. 30-year-old diabetic patients under the guidance of the doctor to apply sugar-lowering drugs for treatment, good control of blood glucose, generally does not have a great impact on life.