Small red dots all over the body is not necessarily AIDS, AIDS patients can generally appear in the AIDS period or acute stage of red dots, in addition to prickly heat, eczema and other diseases can also lead to the appearance of small red dots all over the body. 1. AIDS: a chronic infectious disease caused by the human immunodeficiency virus, mainly through sexual contact, blood and mother-to-child transmission and other means of transmission, in the acute stage of AIDS and AIDS, some patients can appear all over the body red pimples and other uncomfortable symptoms. 2. Prickly heat: a superficial, inflammatory skin disease common in summer or hot environment, mainly under the relief of dampness and heat, sweat pore blockage and rapid occurrence of small pimples, small blisters, with itching sensation. For generalized prickly heat, it can also cause patients to appear small red spots all over the body. 3. Eczema: is caused by a variety of internal and external factors of the superficial dermis and epidermal inflammation, in the acute exacerbation of the patient’s body skin can lead to symptoms of pimples, so it can also cause patients to appear all over the body of small red spots. Because of the causes of small red spots all over the body of the patient is more reasons, can not rely on a single symptom to judge for AIDS, but also need to go to the hospital to improve the relevant examination, a clear diagnosis.