A medical apparatus includes: a storage section that stores three-dimensional image information in a subject, the three-dimensional image information being acquired in advance an image pickup section that picks up an image in the subject a luminal organ extracting section that extracts image information of a three-dimensional shape of a specific luminal organ in the subject from the three-dimensional image information a feature information acquisition section that acquires feature information in the image information of the extracted three-dimensional shape of the specific luminal organ based on the position information of the image pickup section inserted into the specific luminal organ an associated image generating section that generates an image in which the feature information is associated with the image information of the three-dimensional shape of the specific luminal organ a display section that displays a piece of the feature information of the specific luminal organ in the vicinity of the position information of the image pickup section in the specific luminal organ.
