The pancreas is usually not normal in diabetics. B cells in the pancreas can secrete insulin, but diabetes mellitus is a group of metabolic diseases characterized by chronic hyperglycemia caused by multiple etiological factors, and is caused by defective insulin secretion and/or action, indicating that the insulin-secreting cells of the pancreas may have developed a problem, and the pancreas is generally not normal at this time. Patients with diabetes are advised to exercise moderately, control their diet, take medication to lower their blood glucose, follow their doctor’s instructions when administering medication, and be alert to the occurrence of hypoglycemia when using insulin. Appropriate exercise can be performed in the absence of other underlying diseases such as heart disease to promote the utilization of carbohydrates and reduce the need for insulin. It is recommended that diabetic patients go to the hospital in time and follow the doctor’s instructions for treatment to avoid delay.