Provided are a fiber sheet, and a bandage in which same is used. Said sheet has a stress relaxation rate of 85% or less defined according to the formula: stress relaxation rate (%) = (five-minute stress elongation S5/initial-elongation stress S0) x 100, where initial-elongation stress S0 [N/50 mm] is the elongation stress immediately after elongation at an elongation of 50% in a first direction within a plane, and the five-minute stress elongation S5 [N/50mm] is the elongation stress when elongated for five minutes at an elongation of 50% in the first direction.本發明提供纖維薄片及使用期之繃帶，該纖維薄片於將面內之第1方向以伸長率50%剛伸長後之伸長時應力設為初期伸長時應力S0[N/50mm]、將前述第1方向以伸長率50%伸長5分鐘時之伸長時應力設為5分鐘伸長時應力S5[N/50mm]時，以下述式：應力緩和率[%]=(5分鐘伸長時應力S5/初期伸長時應力S0)×100定義之應力緩和率為85%以下。
