Itchy body in summer may be related to insect bite dermatitis, prickly heat, ultraviolet allergy and other reasons. 1. Insect bite dermatitis: summer mosquitoes, insects, if the mosquito bites or insects after contact with the skin allergic reaction, there will be itchy in the summer, and may also be accompanied by small blisters, pimples and other symptoms. 2. prickly heat: in a hot and stuffy environment, a large amount of sweat is not easy to evaporate, so that the stratum corneum is impregnated and swollen, resulting in narrowing or blocking of the sweat ducts, sweat stagnation in the sweat ducts, increased pressure, sweat ducts, rupture of sweat, sweat leakage of the surrounding tissues and cause disease. It can also cause itchy body in summer. 3. Sunburn: summer ultraviolet rays are strong, if you are outdoors for a long time, resulting in skin damage, may appear very itchy, and accompanied by redness and swelling and other uncomfortable symptoms. Caused by the summer itchy body more reasons, it is recommended to go to the hospital in a timely manner for examination and diagnosis, after a clear disease to give targeted treatment.