Pediatric pruritus refers to the itchy and uncomfortable symptoms of children’s skin under the influence of a variety of factors, which are mainly related to atopic dermatitis, contact dermatitis and dry skin and other factors. 1. Itchy skin caused by atopic dermatitis: this is a chronic inflammatory skin disease associated with genetics, immune abnormalities, skin barrier function, with dry skin, itching as the main manifestation, can be combined with allergic rhinitis, allergic conjunctivitis and other symptoms. 1. Itchy skin caused by contact dermatitis: children’s skin is relatively delicate and is susceptible to inflammatory reactions to external sensitizing factors or irritating substances, which is mainly manifested as itchy skin in the clinic, and some children may also have pimples, macules and other skin changes. 2. Itchy skin caused by dry skin: in dry seasons or bathing water temperature is too high, resulting in excessive removal of oil on the skin surface, children may also appear itchy discomfort. Due to the many causes, the specific situation needs to ask the doctor for an interview.