Pediatric pruritus may be related to physiological causes such as poor environmental temperature and humidity, friction of intimate apparel, or it may be related to allergies, eczema and other diseases. 1. Physiological causes: when the environment in which the child grows has a low temperature and poor humidity, it may cause dry skin, resulting in itching; when the child’s intimate clothing is rough, or irritating to certain clothing materials, it may also cause pruritus. 2. Pathologic causes: (1) Allergic dermatitis: due to various internal and external factors, skin allergy is induced, which can involve the whole body skin, and the skin can appear erythema, papules, wind bumps, blisters, etc., which can cause pruritus. (2) diabetes: diabetes can cause metabolic disorders, pruritus. In addition, pediatric pruritus may also be associated with mental anxiety, emotional stress or fear. Pediatric pruritus has more causes, when long-term or frequent skin itching, should promptly seek medical attention, clear cause, active treatment.