Living with a person who has liver cancer is not contagious, but there is a risk of contracting the hepatitis virus.
Liver cancer itself is not contagious, but since a large portion of the causes of liver cancer are due to untreated viral hepatitis resulting in cirrhosis of the liver, which eventually leads to liver cancer. If a patient has liver cancer caused by viral hepatitis, these viruses can remain in the patient’s body fluids.
Hepatitis B virus is contagious, and the main ways of transmission are blood transmission, vertical transmission from mother to child, and medical transmission. For healthy people who live together without close contact, they are generally not infected by hepatitis B virus.
Therefore, cohabitation with liver cancer patients may cause viral hepatitis in healthy cohabitants due to the contagious nature of hepatitis virus, but liver cancer itself is not contagious, so it will not be infected with liver cancer.