Children sleep at night itchy body may be dry skin, bedding is not clean and other physiological factors, but also may be contact dermatitis, atopic dermatitis, as well as drug dermatitis and other factors. 1. Physiological factors: If a child sleeps at night with dry indoor air or unclean bedding, it may irritate the skin and easily cause itchy manifestations. Pay attention to skin moisturizing, clean bedding, bed sheets. 2. Contact dermatitis: caused by contact with sensitizing or irritating substances, patients will have pimples, papules, erythema, blisters, itching and other manifestations. If a child has contact dermatitis before going to bed, he or she may have the symptom of itching all over the body while sleeping. 3. Atopic dermatitis: the cause of atopic dermatitis is not clear, considering genetic, immune factors and other reasons. Patients with dry skin, itching as the main manifestation. Therefore, children with atopic dermatitis may have an itchy body when they sleep. 4. other: children sleep at night itchy body may also be drug dermatitis, mite dermatitis, eczema, hives and other causes. It is recommended that children sleep at night itchy symptoms, parents need to take their children to the doctor in time, if it is caused by physiological factors do not need to be treated. For the disease caused by children itchy body, you need to consult a doctor in time, under the guidance of the doctor’s treatment.