The Japan Hepatology Market Size refers to the ecosystem of drugs, diagnostics, devices, and services dedicated to preventing, diagnosing, and treating liver diseases in Japan. It covers hepatitis, fatty liver disease, cirrhosis, fibrosis, and liver cancer management across hospitals, clinics, and research institutions, supported by advanced healthcare infrastructure, strong regulation, and widespread patient access, nationwide screening programs and innovative clinical practices adoption. Furthermore, the Japan hepatology market is growing due to the increasing prevalence of liver diseases, including hepatitis and fatty liver disease, along with an ageing population.