PROBLEM TO BE SOLVED: To provide a joint supporter configured to provide a sufficient support from a lateral side for leg symptoms such as the genu varum and, opposite thereto, the genu valgum.SOLUTION: A cylindrical knitted fabric of a joint supporter includes a joint support area 130. The joint support area 130 includes: a joint contact area 140 coming into contact with a joint of a patient an upper-part support knitted fabric area 130U provided into a cylindrical shape at an upper position of the joint contact area 140 a lower-part support knitted fabric area 130D provided into a cylindrical shape at a lower position of the joint contact area 140 and a belt-like side support knitted fabric area 130C disposed at any one side part of the joint contact area 140, connecting the upper-part support knitted fabric area 130U and the lower-part support knitted fabric area 130D, and extending in the vertical direction. The upper-part support knitted fabric area 130U, the lower-part support knitted fabric area 130D, and the side support knitted fabric area 130C have tightening force stronger than the tightening force of the knitting fabric of areas enclosing them.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2018,JPO&INPIT【課題】脚がO脚となる症状や、反対のX脚となる場合の症状に対して、側方から十分なサポートを実施することができる構成を有する関節用サポーターを提供する。【解決手段】この関節用サポーターの円筒状編地は、関節支持領域130を含み、この関節支持領域130は、患者の関節部に当接される関節当接領域140と、関節当接領域140より上方の位置において、円筒状に設けられる上部支持編地領域130Uと、前記関節当接領域140より下方の位置において、円筒状に設けられる下部支持編地領域130Dと、関節当接領域140のいずれか一方の側部に配置され、上部支持編地領域130Uと下部支持編地領域130Dとを連結し、上下方向に延びる帯状の側部支持編地領域130Cと、を有し、上部支持編地領域130U、下部支持編地領域130D、および、側部支持編地領域130Cは、これらを取り囲む領域の編地の締付力よりも強い締付力を有している。【選択図】図4