The World Congress of Internal Medicine (WCIM) is the leading event organized by the International Society of Internal Medicine (ISIM), held every two years to promote global collaboration, education, and scientific exchange in internal medicine. WCIM brings together physicians, researchers, and healthcare professionals from around the world to share knowledge and strengthen the role of internal medicine in global health. Past congresses have been hosted in cities such as Kyoto, Buenos Aires, Seoul, Cape Town, and Prague. The 2026 congress will return to Taipei, offering another exciting opportunity for learning, networking, and advancing internal medicine together.