Not all credit cards can provide free medical examination and registration services, and different credit cards provide different medical services. For example, AE White of China Merchants Bank can provide free oral care service once a year, including registration fee, tooth cleaning, polishing and a panoramic X-ray examination (or sandblasting); CITIC Air China World Card can provide health check-ups, appointments for famous doctors and secondary diagnosis and treatment services in world-renowned hospitals; Agricultural Bank of China Zunran Platinum Card can provide once-a-year medical examination service and three-time registration service, which can be transferred to others in addition to your own enjoyment.