AIDS can be transmitted through breast milk. HIV is present in the breast milk of AIDS patients, and the gastrointestinal tract of newborns is not yet fully developed, so it can be transmitted to babies through breast milk, so AIDS mothers should not breastfeed. In fact, not only breast milk, but also blood, prostate fluid, semen, vaginal secretion, tissue fluid, cerebrospinal fluid, ascites, pleural fluid, etc. of AIDS patients contain more viruses, which may cause infections when they touch the wounds of healthy people or enter the bodies of healthy people. The saliva, urine and feces of AIDS patients are relatively unlikely to cause infection. Therefore, avoiding contact with the blood and body fluids of AIDS patients in daily life can effectively avoid infection and protect yourself more effectively.