Itchy body at night sleep may be eczema, scabies, hives and other diseases caused. 1. Eczema: the cause is complex and difficult to understand, may be related to changes in temperature and humidity or mental psychological factors. It leads to the appearance of intense itching as well as corn grain-sized papules, papules or blisters, concentration at night, may appear at night to sleep on the body is very itchy feeling. 2. Scabies: mainly manifested as pimples, or small blisters at the top of the pimples and intense itching and other symptoms, is caused by the scabies mite contagious skin disease, scabies mites are more active in the evening, so the patient may sleep at night on the body is very itchy performance. 3. Urticaria: mostly related to food allergies and infections, manifested as itchy skin first appeared after the size of the wind and angioedema, the wind is intermittent, some patients will be in the night attack, which leads to sleep at night very itchy body. There are many reasons for the itchy body at night, it is recommended that patients go to the hospital in time to clarify the cause of the disease.