Itchy skin on the abdomen is commonly caused by the following reasons: first, unclean skin, is caused by a long period of time without cleaning the abdominal skin, you can rub to relieve the symptoms of itching. Second, dry skin, is due to the use of inappropriate toiletries, the oil off too much or too frequent skin bathing caused by. Third, nutritional deficiencies, the need for appropriate more intake of unsaturated fatty acid food, such as walnuts, peanuts, sesame, etc., but also appropriate more coarse grains, such as corn, etc. Fourth, allergic dermatitis, often caused by contact with inappropriate items or cosmetics, or eating inappropriate food, such as seafood, shells, etc.. Fifth, due to stress, when the local pressure is too much, it can also lead to itchy skin. If the itchy skin on the abdomen persists, you need to go to the hospital promptly to clarify the cause.