A patient once asked, “What causes the skin on the lower leg to feel itchy all the time? Could it be a diabetic foot? Today we will take a brief look at itchy skin on the lower extremities caused by diabetes and the relationship between it and diabetic foot. First, itchy skin caused by high blood sugar stimulation. Long-term high blood sugar has harmed various organs in the body, and the harm to the skin is also very obvious, stimulating the microvasculature and nerves on the surface of the skin, causing a series of lesions on the surface of the skin, and itching is the earliest manifestation. Second, germ infection. Diabetic skin resistance is lower than ordinary people, the skin is easy to be infected by various germs, the early will appear different degrees of skin itching, serious will evolve into pustules, ringworm, diabetic foot and other infectious diseases. Third, itching caused by dry skin, etc. With the growth of age and disease process, the secretion of skin oil will gradually decrease, resulting in a decrease in self-protection ability, which will present different degrees of dry aging state, and one of the clinical symptoms is itchy skin. Also remind everyone, diabetic skin itching must not be left to chance, especially when itching involuntarily will scratch, scratching damage to the skin triggered by a variety of germs infection. The resistance of diabetic skin is much worse than ordinary people, once the infection may cause more serious skin damage, it is difficult to heal. At the same time, it is not recommended to use hormonal drugs topically without permission, because it is easy to cause skin quality changes. Fourth, eczema and other causes of itching. Especially the weather is special, wear more shoes and socks and sweat more, it is easy to cause eczema, this is also particularly itchy, the chance of being scratched will be greater. What to do? You need to go to the hospital as soon as possible for screening and examination related to diabetes and complications, to find out the cause of itchy skin and develop a targeted treatment plan. You should also actively control your blood sugar, blood pressure and blood lipids, which can aggravate the symptoms. If wounds and infections have already appeared due to scratching, it is recommended to visit a specialist hospital specializing in the treatment of diabetic foot to avoid aggravation of wounds and infection due to wrong treatment.