In autumn and winter, due to dry weather, certain people will often feel itchy skin, especially at night the itchy skin will be more aggravated, the current causes of itchy skin are mainly the following three: 1, due to the autumn and winter season, the skin is too dry, the itch caused by the poor nutritional status of the skin. 2, due to contact with certain allergens, or even contact with certain parasites caused by the itchy skin. 3, accompanied by diabetes, there may also be Itchy skin caused by complications from diabetes. The pruritus of skin complicated by diabetes is often paroxysmal. And itchy skin caused by diabetes is often due to scratching, local skin infections can occur, and even cause skin pigmentation, causing dryness and flaking of the skin.