No or little sweating in the lower body is a sign of abnormal sweating in diabetic autonomic neuropathy. There are signs of yin deficiency, which makes your body hot. As well as the effects caused by plant nerve dysfunction. Then, patients with lower body no sweating or little sweating should be differential diagnosis with which diseases? The following is a brief introduction: a. Generalized anhidrosis 1. Congenital ectodermal dysplasia Patients often combine sebaceous gland, hair, nail and other developmental insufficiencies or defects in addition to sweat duct dysplasia. 2, systemic diseases caused by. There are dry syndrome; urolithiasis; chronic nephritis; fluid edema; diabetes mellitus. Second, limited anhidrosis 1, dermatological diseases There are ichthyosis; scleroderma; leprosy; radiation dermatitis; vitamin A deficiency. 2, neurological diseases such as transverse myelitis; poliomyelitis; spinal cord cavitation. Diagnosis: (1) postural hypotension: when getting up, toileting, standing up or rapidly changing position, dizziness and even falling; (2) cardiac autonomic neuropathy: the appearance of a rapid heart rate, constant greater than 90 beats/min, does not change with activity or rest; severe cases suffering from coronary heart disease without angina pectoris, or even myocardial infarction is also “painless “(3) Gastrointestinal manifestations: fullness, early satiety, bloating, postprandial discomfort, nausea/vomiting, epigastric pain/heartburn, called “diabetic gastroparesis”; may also manifest constipation, or alternating constipation and diarrhea; (4) Urination abnormalities: incomplete urination, weak urination, until urinary retention, called “neurogenic bladder”; a few patients may be incontinent; (5) abnormal sweating: excessive sweating in the upper body, sweating profusely during meals; little or no sweating in the lower body; (6) male impotence is common; (7) lack of normal response to hypoglycemia: in those without autonomic neuropathy, hypoglycemia is manifested as panic, hand trembling, cold sweating, dizziness, The lack of these early warning signals of hypoglycemia in autonomic neuropathy can easily cause serious hypoglycemic coma.