An endoscope apparatus includes a distance information acquisition section that acquires distance information about a distance between a specific part and a treatment tool, a degree-of-relation acquisition section that acquires a degree of relation between the specific part and the treatment tool based on at least one of specific part information and treatment tool information, and the distance information, a notification processing section that performs a notification process based on the degree of relation, a treatment tool information acquisition section that acquires performance information about the treatment tool as the treatment tool information, the performance information relating to an incision capability of the treatment tool, and an incision capability acquisition section that acquires information about the incision capability of the treatment tool based on the performance information about the treatment tool. The degree-of-relation acquisition section increases the degree of relation as the incision capability of the treatment tool increases.