MyHealthAvatar is to test the feasibility of building a patient self-managed avatar, which contains a wide spectrum of health status data, including medical records, medical data and other health related information, such as diet, life style, family history etc. It is believed by the clinical experts that a comprehensive and lifetime collection of such a data will bring significant benefit to medical diagnosis, treatment and health prediction. Notably, patients will be placed at the centre of the envisaged avatar system, which will allow them to effectively manage their own health information and to be actively involved in their own healthcare.