A method for managing patient information in a system includes a cloud server, a healthcare facility, and affiliated facilities connected via a network. The method includes: receiving, from the healthcare facility, a medical image in response to examination order information sent by a first user from one affiliated facility; correlating the medical image to the examination order information and adding them to the patient information; correlating the medical image to disclosure propriety information indicating whether to allow the patient information to be disclosed to a second user; receiving a viewing request sent by the first or second user from one affiliated facility; determining whether to approve the viewing request based on the examination order information or the disclosure propriety information; and approving the viewing request and transmitting the patient information to the affiliated facility from which the viewing request has been sent.