At night, the body is particularly itchy may be caused by dry skin, may also be scabies, eczema, contact dermatitis and other diseases. 1. Dry skin: in the fall and winter seasons, the environment is dry, the skin will also appear dry phenomenon, which will lead to the patient in the night time to sleep on the body particularly itchy symptoms. 2. Scabies: a contagious disease caused by the infection of scabies, because scabies like night activities, can also lead to a particularly itchy body at night. 3. Eczema: the causes or triggers of eczema are complex, such as the night environment is quiet, the human senses are amplified, as well as sympathetic nerve excitation, etc., can cause the itchy feeling at night, which can also be manifested as a particularly itchy situation at night. 4. Contact dermatitis: due to contact with certain chemical fiber bedding, bed sheets and the resulting perverse reaction, can appear on the body itchy, rash, can also be caused by a special itchy body at night. There may be other reasons to cause the above situation, after excluding the dry skin, it is recommended to go to the hospital in a timely manner, to clarify the cause of the disease, symptomatic treatment.