There are three main ways of HIV transmission: 1) sexual transmission; 2) blood transmission; and 3) vertical transmission from mother to child. In normal daily life, this kind of normal contact will not be infected with AIDS. After understanding the three ways of HIV transmission, it is important to pay attention to the prevention of HIV transmission by blocking the transmission routes. When having unsafe sex, always wear a condom. If a pregnant woman is found to have AIDS, she should be tested regularly and interventions should be made to ensure that the baby is born healthy. Do not use drugs to avoid contracting AIDS by sharing syringes during the drug use process. If you have been exposed to HIV, you should seek interruption treatment.