Children’s body itching always scratching may be pediatric eczema, prickly heat, contact dermatitis and other diseases. 1. Pediatric eczema: pediatric eczema may be caused by genetic, autoimmune, environmental and other factors. Children with eczema will manifest as erythema, papules, blisters, oozing and other manifestations, and accompanied by obvious itching symptoms, manifested in the body itching always scratching. 2. Prickly heat: Prickly heat is mainly caused by the blockage of sweat ducts, or may be induced by hot and humid environment, often wearing airtight clothing, drug stimulation and other factors. Children with prickly heat will have itchy skin, pimples, papules and other symptoms, manifested as itchy body always scratching. 3. Contact dermatitis: contact dermatitis is mainly due to skin contact with external sensitizing or irritating substances, thus causing a skin disease. The child will appear itchy skin, erythema, pimples and other symptoms, due to itching can appear always scratching. There are many reasons for children to scratch and itch. Parents should bring their children to the hospital to find out the cause of the disease.