In fact, it is difficult to distinguish between the red spots of AIDS and those caused by other diseases. The rash of AIDS is divided into the rash of the acute stage of AIDS and the rash of the late stage of AIDS. The rash of the acute stage of AIDS is similar to a viral rash and is not significantly different from the viral rash caused by other common viral infections. In the late stage of AIDS, due to the severe depression of immune function and the combination of multiple opportunistic infections, the platelet drop and other viral rashes, fungal infections, dermatitis caused by bacterial infections, etc. may occur easily, depending on the specific condition. The small red dots caused by thrombocytopenia are often subcutaneous petechiae, petechiae, etc.