Liver Cancer Cases May Double by 2050, But Most Are Preventable: Study

The number of liver cancer cases worldwide is projected to nearly double by 2050, reaching 1.52 million new diagnoses annually, unless greater efforts are made to tackle preventable risk factors such as obesity, alcohol consumption, and viral hepatitis, a new study warns.

The findings, published in The Lancet medical journal using data from the Global Cancer Observatory, present a stark outlook on one of the deadliest cancers globally, which is currently the sixth most common and the third deadliest form of cancer.

Global Projections for Liver Cancer

Major Preventable Risk Factors

The study identifies three main causes of liver cancer, all of which are significantly preventable with early intervention:

1. Viral Hepatitis (Hepatitis B and C)
   • Expected to remain the leading causes of liver cancer by 2050.
   • Vaccination at birth is the most effective prevention for hepatitis B.
   • However, vaccine coverage remains insufficient, particularly in low-income countries, notably across sub-Saharan Africa.
   • If vaccination efforts are not scaled up, hepatitis B could kill 17 million people between 2015 and 2030.
2. Alcohol Consumption
   • Projected to account for over 21% of all liver cancer cases by 2050, up more than two percentage points from 2022.
3. Obesity-related Liver Disease (MASLD)
   • Formerly termed non-alcoholic fatty liver disease, now known as Metabolic dysfunction-associated steatotic liver disease (MASLD).
   • Expected to contribute to 11% of liver cancer cases by 2050, also increasing by over two percentage points from 2022.
   • Strongly linked with obesity and type 2 diabetes.

Global Action Urgently Needed

The study, released on World Hepatitis Day, highlights the critical need for international action, with researchers urging:

• Expanded vaccination coverage in under-resourced regions.
• Greater public awareness about the link between liver cancer and modifiable behaviours.
• Targeted health warnings for individuals at higher risk, including those with diabetes or obesity, particularly in the United States, Europe, and Asia.
• Strategic efforts to reduce alcohol consumption and combat the rising prevalence of MASLD.

“There is a pressing global need to address these preventable risk factors before liver cancer becomes an even greater public health burden,” the authors concluded.

This comprehensive study reiterates that while liver cancer poses an escalating threat, 60% of future cases could still be avoided with early interventions, improved awareness, and proactive public health policies.