PROBLEM TO BE SOLVED : To provide a sheet configured to easily and reliably determine presence of needle stick history by scarcely leaving a dent, fold or the like thereon when it is used in a normally possible mode, however, leaving a needle stick hole in a visually emphasized appearance when a use method is wrong or a needle such as an injection needle is illegally inserted therein.SOLUTION : A needle stick detection sheet 100 includes : a whitening resin layer 10; and at least one reinforced layer 20 on one side or both sides of the whitening resin layer 10. When an injection needle with a diameter of 0.80 mm and a cutting tooth form of R.B is inserted therein and a needle stick hole 70 is formed, the whitening resin layer 10 is whitened at a periphery of the needle stick hole 70 with the width of 0.2 mm or more to form a whitened area 80.SELECTED DRAWING : Figure 1COPYRIGHT : (C)2019, JPO&INPIT