1. A diagnosis support apparatus comprising: a display control unit configured to display an input GUI which receives input of a plurality of findings regarding a subject; a deducing unit configured to deduce a diagnosis of the subject on the basis of the findings input through the input GUI; and a determining unit configured to determine whether one of the plurality of input findings supports the deduction or not, wherein the display control unit changes the display form of the input GUI which receives input of the determined finding in accordance with the determination result.