Surprisingly enough, many liver cancers can be prevented. There isn't a liver cancer vaccine yet, but there IS a hepatitis B vaccine that was approved for use in the United States in the early 1980s. The hepatitis B vaccine protects both children and adults from the hepatitis B virus. Chronic infection with the hepatitis B virus is one of the leading causes of liver cancer worldwide.

It is recommended that all children be given the hepatitis B vaccine and that all adults who are at risk, like health care workers and those who engage in risky behavior, get the vaccine as well.

The other leading cause of liver cancer is chronic infection with the hepatitis C virus. So far, there is not a vaccine to protect against hepatitis C infection. The best prevention against hepatitis C as well as hepatitis B (for those who have not been vaccinated) is understanding how the viruses are spread and how to avoid contamination.

Both hepatitis B and hepatitis C are spread through shared use of a contaminated needle (drug use), through unprotected sex, and through childbirth. There was a time when a blood transfusion carried a major risk of contracting hepatitis B or hepatitis C, but better screening has reduced that risk to only one per two million transfusions today.

If you are at high risk for contracting hepatitis B or hepatitis C, you should be tested for these infections often. There are drugs that your doctor can give you to treat these infections. There are no drugs that cure these infections, however, and it is unclear whether treatment actually lessens the chances of cancer developing.

Alcohol abuse is the number one cause of cirrhosis of the liver. Cirrhosis can lead to liver cancer. This cancer prevention technique is quite simple - don't abuse alcohol and if you are abusing alcohol, stop.