A crutch includes a main body and a holding element. The main body has a plurality of positioning holes. The holding element includes a holding body and at least a positioning element. The main body passes through the holding body and the holding body includes at least an accommodating space. The positioning element is disposed on a side of the holding body and is accommodated in the accommodating space. The positioning element includes a positioning portion and a closed portion. When the positioning element is in a first position, the positioning portion is inserted into one of the positioning holes and the main body passes through the closed portion. When the positioning element is in a second position, the positioning portion leaves the positioning hole and the main body passes through the closed portion.一種拐杖包含一本體以及一握把。本體具有複數定位孔。握把具有一握把本體及至少一定位座。握把本體套設本體並具有至少一容置空間。定位座位於握把本體之一側並容置於容置空間,且定位座係具有一定位部及一封閉部,當定位座位於一第一位置時,定位部係插設該等定位孔之其中之一且封閉部係套設本體,當定位座位於一第二位置時,定位部係離開定位孔且封閉部係套設本體。2‧‧‧拐扙211‧‧‧定位孔212‧‧‧桿體221‧‧‧握把本體222‧‧‧定位座223‧‧‧定位部224‧‧‧封閉部224a、224b‧‧‧曲率段225‧‧‧操作部A‧‧‧容置空間EP‧‧‧卡設部ER‧‧‧卡設槽R‧‧‧非平坦結構
