Currently there is no vaccine to prevent liver cancer, only through hepatitis B vaccination, which has no age limit. There is no vaccine for preventing liver cancer, but most of the liver cancers are caused by hepatitis, so hepatitis B vaccination is usually recommended to prevent hepatitis B virus infection and reduce the chance of infection, which indirectly reduces the incidence of liver cancer. Regarding the Hepatitis B vaccine, it is usually available from birth and there is no restriction on the age of the vaccine, which usually requires three injections, the first one after birth, the second one after an interval of one month, and the third one at around 6 months of age. As a booster, an additional dose can be given during childhood or in adulthood. If you need to receive the hepatitis B vaccine, it is important to do so under the supervision of a medical professional and to know if you meet the requirements for vaccination before receiving the vaccine.