Small red dots on the body do not necessarily mean that you have AIDS. Patients with AIDS can develop such subcutaneous changes and have a rash appear, but there are many causes of rashes and many diseases that have rashes, such as urticaria, eczema, drug allergy, measles, rubella, scarlet fever, chicken pox, hand, foot and mouth disease, and blood disorders, etc. Patients can develop red dots under the skin, but in these patients there is no HIV in their bodies. This shows that AIDS patients can have such cutaneous changes and in turn have red dots on the skin without necessarily being AIDS patients, and these diseases can be clearly diagnosed after pathogenic tests.