Kidney damage: diabetic nephropathy may result in proteinuria, and in severe cases, uremia may be formed; 4, neuropathy: the most common is peripheral neuropathy, abnormal sensation, such as numbness, pain, if it affects the motor nerve, there may be impaired movement of the limbs; if it affects the vegetative nerve, there may be diabetic neurogenic bladder or diabetic gastroparesis; also Diabetic postural hypotension, or tachycardia may occur.