PROBLEM TO BE SOLVED: To provide orthopedic socks having wearing comfort close to bare foot, and reducing the load on joints of foot toes and ankle.SOLUTION: There is provided an orthopedic sock 10 comprising a toe sack 30 separately holding five toes, an instep part 16, a sole part 20, a plantar arch part 18 and a heel part 14. The sock 10 is provided with a first flexible part 40 formed in the lateral direction of the foot from big toe to little toe along the base of the five toes between the sole part and the toe sack, a second flexible part 50 formed at a position opposite to the flexing part of the ankle and having a tubular form encircling the ankle, and a big toe stretching part 60 covering the sole part 20 along a big toe flexor tendon and stretching or contracting by the flexing motion of the big toe.COPYRIGHT: (C)2013,JPO&INPIT【課題】足指及び足首の関節にかかる負担を軽減して、裸足に近い履き心地の整形外科靴下を提供することを目的としている。【解決手段】本発明の整形外科靴下10は、5本指の指袋30と、足甲部16と、足底部20と、土踏まず部18と、踵部14を備えた整形外科靴下10において、前記足底部と前記指袋の間の5本指の付け根に沿って親指から小指まで足幅方向に形成された第1屈曲部40と、足首の屈曲箇所と対向する位置であって前記足首を囲むよう周状に形成された第2屈曲部50と、前記足底部20の母指屈筋腱の形状に倣って覆い親指の屈曲に沿って伸縮する母指伸縮部60と、を備えたことを特徴としている。【選択図】図1