What should an international patient prepare before traveling?

International patients should obtain a valid medical visa (S visa) for treatment in China, which requires a hospital invitation letter. It is advisable to bring all medical records, including colonoscopy reports and imaging, and arrange for a professional medical interpreter if needed. Patients should also plan for a stay of at least 2–4 weeks for initial evaluation and treatment, and discuss follow-up care with their home gastroenterologist before departure.