Blood transmission is the most important way to transmit hepatitis B. The following ways may also be infected with hepatitis B: 1, using needles contaminated with hepatitis B virus for tattooing or punching holes in the body, such as piercing earrings. If these needles to the front of a person used, and the front of that person happens to be a carrier of hepatitis B virus, used after some small, informal medical clinics or cosmetic surgery did not carry out formal sterilization, when the same needle to the next person with, the virus may be carried into the next person’s body. 2. Sharing personal items that may have blood on them, such as razors and toothbrushes, with others (people with the virus). After using razors, toothbrushes, etc., it is likely that there is blood left on them, and although the amount of blood is so small that it cannot be detected by the naked eye, the amount of virus is enough to infect other people. 3. Sharing needles with people, especially those who share needles for intravenous drug use. Sharing needles for intravenous drug use is not only a way to transmit AIDS, but also a way to infect with chronic viruses such as hepatitis B and C. This is why AIDS patients are often co-infected with more than one virus, often HIV/HCV co-infection, i.e. AIDS and hepatitis C virus or HIV/HBV, i.e. AIDS and hepatitis B virus co-infection. 4. Unsafe sex or multiple sexual partners. Be sure to wear a condom when you have sex with someone with the virus, only then you may avoid getting infected. Condoms can protect you from AIDS infection and also from other STD infections such as hepatitis B virus. 5. Vertical transmission from mother to child.