What bodily fluids transmit HIV from one person to another?
HIV is transmitted through blood, semen, pre-semen (pre-ejaculate), vaginal fluids, and breast milk. These fluids need to enter the bloodstream. Saliva is not generally considered risky, but cuts, sores, or blisters in the mouth increase the likelihood of transmission (i.e., HIV infection). Other bodily fluids such as sweat, tears, or urine are not risky.
