Hepatitis B is indeed a lifelong infection for many people and can lead to severe liver damage, liver cancer, and death.
Hepatitis B is a lifelong infection that can lead to severe liver damage, liver cancer, and even death.

Hepatitis B - British Liver Trust
Source: britishlivertrust.org.uk
Key Evidence
The WHO states hepatitis B can cause chronic infection and puts people at high risk of death from cirrhosis and liver cancer.
who.intwho.intHepatitis B
The Hepatitis B Foundation notes chronic infection often begins at birth and can lead to serious liver disease including cancer.
hepb.orghepb.orgWhat is the likelihood that someone infected with hepatitis B will develop liver...
Mayo Clinic and WebMD both describe hepatitis B as a long-lasting infection that can cause severe liver damage and increase cancer risk.
mayoclinic.orgmayoclinic.orgHepatitis B - Symptoms and causes
webmd.comwebmd.comHepatitis B: Symptoms, Causes, and Treatment
What the Evidence Shows
The statement that hepatitis B is a lifelong infection aligns with the evidence from multiple authoritative sources. Hepatitis B virus (HBV) infection can become chronic, especially when acquired at birth or in early childhood, leading to persistent infection. Chronic hepatitis B infection can cause progressive liver damage, including cirrhosis (scarring of the liver) and hepatocellular carcinoma (liver cancer).
The World Health Organization (WHO) and other health organizations confirm that chronic HBV infection significantly increases the risk of death from liver-related complications. While some individuals may clear the virus naturally, a large proportion remain chronically infected for life without treatment. The risk of severe outcomes such as liver cancer is well documented, with estimates that about 25% of chronically infected individuals may develop liver cancer or severe liver disease over time.
Therefore, the claim accurately reflects current medical understanding.