Excellent safety and insulation in performing the present invention relates dialysis or the like, and inexpensive , yet it is also disinfected and washing at home , to facilitate the discovery of leakage of blood or the like while maintaining the transmissivity, such as the blood of the fabric portion , I will provide a protective cover that can be used to easily nurse , etc. with confidence . A cover body 2 which has a flexible covering detachably to the treatment site of a patient or infusion [ SOLUTION ] dialysis , the window portion 3 of a transparent provided at a portion opposite to the treatment site , the cover body so as to form a cylindrical shape , characterized in that it has a connecting means 5 for connecting the opposite edges of the cover body . [ Selection ] Figure Figure 1【課題】人工透析等を行うに際して保温性且つ安全性に優れ、安価で、しかも家庭で洗濯や消毒もでき、生地部の血液などの透過性を保って血液等の漏れの発見を容易にし、看護師等が安心して簡単に使用できる保護カバーを提供する。【解決手段】人工透析または点滴の患者の被処置部位を着脱自在に被覆する可撓性を有するカバー本体2と、被処置部位に対向する部分に設けられた透明の窓部3と、カバー本体を筒状に形成するように、カバー本体の両縁部を接続する接続手段5とを備えたことを特徴とする。【選択図】図1