Itchy body at night during the day is fine may be mite bites, infected scabies, contact dermatitis, eczema and other causes. 1. Mite bites: do not pay attention to personal hygiene, did not wash the sheets, bedding and other supplies in a timely manner, sleep at night when the skin is sheets, bedding mites bite or contact with their excreta, can stimulate the sensory nerves, triggering the symptoms of itching. 2. Infection of scabies: a skin disease caused by scabies infection through skin contact, due to scabies in the night activities are more, can appear at night to sleep on the body itchy, daytime does not itch the situation. 3. Contact dermatitis, eczema: due to the daytime human corticosteroid secretion more, contact dermatitis, eczema and other skin diseases caused by itching symptoms to play a certain role in inhibiting the night corticosteroid level is relatively low, there will be itching symptoms. Itchy body at night during the day may have other reasons, it is recommended to the hospital in a timely manner, a clear cause of the disease, in accordance with the doctor’s instructions standardized treatment.