To make it possible to easily attach to the other arm with one hand by himself without himself, without requiring a force when wearing, avoiding contact with protrusions, adapting to the thickness of the attachment part by adjustment Provide a stable and reliable seal over the entirety of the seal and provide a watertight seal securely even if irregularities such as wrinkles and hair are present on the skin and provide a waterproof cover for the affected part which can protect the attached drip needles etc from external force .SOLUTION: The waterproof cover has a tubular shape, has water resistance and flexibility, and has openings for allowing the arm or the leg to pass through at both ends thereof. At least one of the pair of independent foamed sponge tapes is made of a sliced surface and is attached to each opening so that the slice surface can be watertightly adhered to the arm or the leg passing through each opening. A pair of hook and loop fastener bands can fix each independent foam sponge tape in a state in which each independent foam sponge tape is watertightly adhered and wrapped around an arm or a leg passing through each opening.BACKGROUND OF THE INVENTION【課題】介助者がいなくても自分だけで片手で容易に他方の腕に装着でき、装着する時に力を要せず、突起物との接触を回避でき、調節によって装着部位の太さに適合でき、シールの全体に亘って安定確実なシールができ、肌に皺や体毛等の凹凸があったとしても確実に水密シールができ、装着した点滴針等を外力から防護できる患部防水カバーを提供する。【解決手段】防水カバーが、筒型であって耐水性と可撓性とを有し、両端に腕または脚を通すための開口部を有する。1対の独立発泡スポンジテープが、少なくとも片面がスライス面から成り、各開口部を通る腕または脚にスライス面を水密的に密着可能に各開口部に貼り付けられる。1対の面ファスナーバンドが、各開口部を通る腕または脚に各独立発泡スポンジテープを水密的に密着させて巻き付けた状態で各独立発泡スポンジテープを固定可能である。【選択図】図1
