The purpose of the new model is to provide a blood pressure bandage which is convenient for users to observe the time required for pressure hemostasis. The technical means include: an OK stretching body； a pressing area arranged in the center of the external surface of the OK stretching body； and a display area arranged at one end of the external surface of the OK stretching body, which will produce obvious changes by pressing the pressing area.本新型目的在於提供一種方便使用者觀察加壓止血時所需時間的壓血繃。其技術手段包括：一OK繃本體；一設於該OK繃本體外表面中央的按壓區；以及一設於該OK繃本體外表面一端、並會藉由該按壓區的按壓而產生明顯變化的顯示區。
