A medical system comprising: a plurality of medical devices (6a, 6b, 7a, 7b); a medical display apparatus including a panel portion including a display unit configured to display information with respect to the plurality of medical devices (6a, 6b, 7a, 7b) and a sensor unit configured to detect an input operation; and an information storage unit configured to store graphical user interface information for display and graphical user interface information for operation; and a detection unit configured to output a detection signal which detects whether or not the panel portion is disposed at least at one predetermined position, characterized in that the plurality of medical devices (6a, 6b, 7a, 7b) are a plurality of endoscope peripheral devices to be used together with an endoscope, the medical display apparatus is configured to be operated by being grasped by a nursing staff member, wherein the medical system further comprises a controller configured to perform bi-directional communication with the plurality of endoscope peripheral devices and execute central control of the plurality of endoscope peripheral devices; and a display selection control unit provided in the medical display apparatus and configured to select information between the graphical user interface information for display which is information for display regarding an operation state of the plurality of endoscope peripheral devices, and the graphical user interface information for operation for operating the plurality of endoscope peripheral devices stored in the information storage unit, in accordance with a control signal wirelessly transmitted based on the detection signal of the detection unit so as to be displayed on the display unit, wherein the display selection control unit is configured, on the basis of the control signal, to control to cause the display unit to display the graphical user interface information for display when it is detected that the panel portion is at the predetermined position, and control to cause the display unit to display the graphical user interface information for operation when it is not detected that the panel portion is at the predetermined position. a plurality of medical devices (6a, 6b, 7a, 7b); a medical display apparatus including a panel portion including a display unit configured to display information with respect to the plurality of medical devices (6a, 6b, 7a, 7b) and a sensor unit configured to detect an input operation; and an information storage unit configured to store graphical user interface information for display and graphical user interface information for operation; and a panel portion including a display unit configured to display information with respect to the plurality of medical devices (6a, 6b, 7a, 7b) and a sensor unit configured to detect an input operation; and an information storage unit configured to store graphical user interface information for display and graphical user interface information for operation; and a detection unit configured to output a detection signal which detects whether or not the panel portion is disposed at least at one predetermined position, characterized in that the plurality of medical devices (6a, 6b, 7a, 7b) are a plurality of endoscope peripheral devices to be used together with an endoscope, the medical display apparatus is configured to be operated by being grasped by a nursing staff member, wherein the medical system further comprises a controller configured to perform bi-directional communication with the plurality of endoscope peripheral devices and execute central control of the plurality of endoscope peripheral devices; and a display selection control unit provided in the medical display apparatus and configured to select information between the graphical user interface information for display which is information for display regarding an operation state of the plurality of endoscope peripheral devices, and the graphical user interface information for operation for operating the plurality of endoscope peripheral devices stored in the information storage unit, in accordance with a control signal wirelessly transmitted based on the detection signal of the detection unit so as to be displayed on the display unit, wherein a controller configured to perform bi-directional communication with the plurality of endoscope peripheral devices and execute central control of the plurality of endoscope peripheral devices; and a display selection control unit provided in the medical display apparatus and configured to select information between the graphical user interface information for display which is information for display regarding an operation state of the plurality of endoscope peripheral devices, and the graphical user interface information for operation for operating the plurality of endoscope peripheral devices stored in the information storage unit, in accordance with a control signal wirelessly transmitted based on the detection signal of the detection unit so as to be displayed on the display unit, wherein the display selection control unit is configured, on the basis of the control signal, to control to cause the display unit to display the graphical user interface information for display when it is detected that the panel portion is at the predetermined position, and control to cause the display unit to display the graphical user interface information for operation when it is not detected that the panel portion is at the predetermined position.