Trich is diagnosed by a microscopic examination, or by culture. If left untreated, it can cause discomfort and be spread to other people. Diagnosis of pubic lice is made by examination. Skin infections as a result of scratching may occur if left untreated. A blood test detects HIV antibodies in the bloodstream, and a diagnosis of AIDS is usually made on the basis of antibodies and presence of specific diagnostic criteria.
Antiviral drugs are available to slow the progression of the disease.