Red bumps on the body to consider and urticaria, eczema, as well as ringworm, folliculitis and other diseases related. 1. Urticaria: The patient’s skin will appear erythema, edema and papules and other symptoms, mostly accompanied by itching. Its pathogenesis may be caused by skin contact with exogenous substances. 2. Eczema: clinical manifestations of erythema, papules and blisters, the disease can be distributed in all parts of the body surface, the cause of its genetic, immune, environmental factors. 3. Ringworm: ringworm is usually manifested as red papules, papules and red patches, etc., its pathogenesis and ringworm bacteria invasion of the body, obesity, hot and humid environment and other factors may also trigger the disease. 4. Folliculitis: folliculitis is mostly manifested as red papules centered on hair follicles, and its pathogenesis may be related to hair follicles infected by pathogens, sweating, skin damage and other factors may also trigger the disease. The causes of red bumps on the body are more, it is recommended that patients go to the regular hospital, clear cause, symptomatic treatment.