A medical system of an aspect example includes a portable data storage, first information processing equipment, and telecommunication equipment. Medical information is stored in the portable data storage. The medical information includes authentication information of a subject who has undergone a medical examination and examination data acquired from the subject by the medical examination. The first information processing equipment is connected to a telecommunication network. The telecommunication equipment is configured to transmit at least part of the medical information stored in the portable data storage that has been moved to an available area of the telecommunication network, to the first information processing equipment via the telecommunication network.