PROBLEM TO BE SOLVED: To provide a treatment device capable of improving the effect of treatment on an affected part.SOLUTION: The treatment device comprises: a light source； an irradiation unit which irradiates a subject with light from the light source； a receiving unit which receives an acoustic wave propagating from the subject upon irradiation with light by the irradiation unit, and outputs an electric signal； a processing unit which acquires characteristic information for the subject on the basis of the electric signal outputted from the receiving unit； a temperature adjusting unit which is configured to be able to change a temperature of the subject； and a temperature controlling unit which controls the temperature adjusting unit on the basis of the characteristic information.SELECTED DRAWING: Figure 1【課題】患部の治療効果を高めることができる治療装置を提供する。【解決手段】光源と、光源からの光を被検体に照射する照射部と、照射部が光を照射することにより被検体から伝搬する音響波を受信して電気信号を出力する受信部と、受信部から出力される電気信号に基づいて被検体の特性情報を取得する処理部と、被検体の温度を変更できるように構成された温度調整部と、特性情報に基づいて温度調整部を制御する温度制御部と、を有する治療装置を用いる。【選択図】図１
