To reduce confirmation time by an examiner to increase the diagnosis efficiency, a medical system including a medical apparatus that acquires a tomographic image of an object to be examined using combined light generated by combining return light from the object to be examined to which measuring light is emitted and reference light corresponding to the measuring light includes a display control unit configured to control a display unit to sequentially display the tomographic images in the predetermined region on the display unit, and a changing unit configured to change a display time period for the tomographic images displayed in the predetermined region based on the number of the tomographic images to be displayed.
