PROBLEM TO BE SOLVED: To provide a thermotherapy implement used at a joint part, keeping a temperature suitable for thermotherapy for a long time and holding a heating part in a suitable region without shifting against the motion of the joint part.SOLUTION: The thermotherapy implement includes: a cylindrical holder 1 made of expandable material and a chemical body warmer 2 held on the holder 1, wherein the holder 1 is mounted to the joint part having a storing part 3 for putting in and out or mounting the chemical body warmer 2.COPYRIGHT: (C)2012,JPO&INPIT【課題】温熱治療に適する温度を長時間維持でき、かつ関節部の動きに対してもズレることなく、適切な部位に発熱部を保持できる関節部に用いる温熱治療具を提供する。【解決手段】伸縮性の材料で作製された円筒状のホルダー1と該ホルダー1に保持される化学カイロ2からなり、該ホルダー1が化学カイロ2の出し入れまたは装着が可能な収納部3を有する関節部に装着する温熱治療具。【選択図】図1