The specific effects of diabetes on the body are as follows: 1. Decreased immunity of the body: Once suffering from diabetes, in the state of high sugar, glucose is not well absorbed and utilized by the body, but is lost in large quantities from the urine, and the body provides energy by decomposing fat and protein, which will lead to decreased immunity of the body; 2. Serious disorders of glucose metabolism: mainly due to the relative or absolute lack of insulin in diabetic patients, fat The main reason is that the relative or absolute lack of insulin in diabetic patients, fat and protein decomposition accelerates, and ketone bodies are produced in large quantities, while the tissues fail to oxidize in time, and the lungs and kidneys fail to excrete ketone bodies in time, resulting in a significant increase in blood ketone concentration, which leads to ketoacidosis and hyperosmolar non-ketotic diabetic coma, with a very high lethality rate, requiring emergency treatment; 3, diabetic eye disease: diabetic retinopathy and diabetic cataract are the main manifestations of diabetes endangering the eyes. Diabetic neuropathy: peripheral neuropathy and vegetative neuropathy are the most common. The clinical manifestations of peripheral neuropathy are numbness, burning or coldness, and tingling at the end of the extremities, and in severe diabetic patients, they may toss and turn and stay awake all night. Patients with vegetative neuropathy may exhibit abnormal sweating, bloating, constipation, diarrhea, upright hypotension, incomplete urination, urinary incontinence, tachycardia or bradycardia, etc.; 5. Other: such as cardiovascular disease, etc.