A small piece of small rice pimples on the body may be related to ringworm, eczema, cornu rashes and so on. 1. Ringworm: mainly caused by red trichophyton, flocculent epidermal fungus and other infections, the initial red dots, and gradually develop into flaky papules or small blisters, round, ovoid or irregular. 2. Eczema: may be in contact with animal hair, food stimulation, artificial fibers, etc., causing the skin to appear due to perverse reactions, the initial general performance for the size of corn grain pimples, papules. 3. Corns: may be associated with sweat duct damage, etc., for the epidermis or appendage epithelial benign swelling, generally manifested as yellowish-white, firm papules. A small piece of small rice grain pimples on the body can also be seen in other causes, it is recommended to consult a doctor in a timely manner to clarify the cause, under the guidance of the doctor for targeted treatment or treatment.