AIDS patients with various opportunistic infections or combined tumors can lead to the occurrence of rashes, and their morphology shows different manifestations depending on the combined diseases. 1. Combined infections: AIDS patients are often prone to combined infections due to low immune function. Herpes zoster is mainly manifested as erythema, papular herpes, distributed along the trunk and limbs of the unilateral nerve area; molluscum contagiosum can be manifested as scattered millet-sized wax-like glossy papules on the trunk and limbs, with umbilical concavity in the center; warts can be manifested as warty pimples on the genitals and other parts of the body when they appear. The above symptoms can appear alone or at the same time. 2. Combined tumors: AIDS patients are prone to combine with Kaposi’s sarcoma, which manifests itself as purplish-red or dark blue infiltrated spots or nodules on the limbs, tip of the nose, trunk and other parts of the body, and with the development of the course of the disease, it can be fused into a piece or form ulcers spreading to the surroundings. To summarize, the form of the rash caused by AIDS is determined by the accompanying diseases, and it can occur alone or with the symptoms of multiple diseases at the same time. If you are suffering from AIDS, you need to actively consult a doctor and follow the doctor’s instructions for proper treatment.