PROBLEM TO BE SOLVED: To provide an ingrown nail corrector capable of performing treatment for the ingrown nail correction while suppressing the onset of a secondary nail distortion/deformation.SOLUTION: The ingrown nail corrector comprises: a cross-sectionally C-shaped holding type correction part 1 which corrects an ingrown nail by pinching, from the nail tip 24 side, each of mostly corners of nail edges 22 and a distortion resistance part 2 which is as long as it can be laid between the correction part 1 and the correction part 1 and suppresses the distortion and deformation of the nail shape. Both edges of the distortion resistance part 2 and both neil edges are respectively pinched by the correction part 1 to be used.【課題】 この発明は、二次的な爪の歪曲変形の発症を抑制しながら巻き爪矯正の治療が行える、巻き爪矯正具に関する。【解決手段】 爪の先端部24側からで、且つ両側爪縁部22方向略角に夫々挟着することで巻き爪が矯正される断面略C字状の挟持型矯正部1と、該矯正部1と該矯正部1の間で渡設できる長さで、且つ爪形の歪曲変形を抑制する該耐歪曲部2とで構成されている。該耐歪曲部2の両側端部と両側爪縁部とを該矯正部1によって、夫々挟着されて使用する。【選択図】図1