People with AIDS may develop thrush, which causes lesions in the mouth that are slightly raised and creamy white, and on the skin, a type of cancer associated with AIDS called Kaposi's sarcoma may cause dark or purplish lesions, according to WebMD. Lesions associated with AIDS are due to other health complications that are able to overcome the body's weakened immune system.
Oral hairy leukoplakia is one of the first signs of AIDS, and it appears as white lesions on the sides or bottom of the tongue. The lesions may be raised and hairy, or they may be flat and smooth. Oral hairy leukoplakia lesions do not cause pain.
An infection associated with AIDS caused by a virus, molluscum contagiosum appears as flesh-colored or white bumps on the skin, notes WebMD. The bumps tend to go away naturally, and molluscum contagiosum does not usually require treatment.
Shingles may occur in conjunction with AIDS, states WebMD. Shingles usually appears as a band or a group of raised spots on one side of the body. A red rash and blisters filled with fluid may also occur. Some people with AIDS may develop a skin disorder called psoriasis, in which patches of skin develop silvery scales and become itchy and pink or red. If a person with AIDS develops seborrheic dermatitis, the skin around the groin, upper back, chest and face may become inflamed and turn red and flaky.