Abstract: A scope cover is disclosed for use with a scope such as an endoscope that is inserted into a cavity. The scope cover preferably includes an elongated tubular body having internal ribs or grooves to retain a lubricant. An external flange extends radially outward from the tube body to prevent the tube from being inserted too far into the cavity. In use, the scope is inserted into the scope cover and both the scope and scope cover are inserted into the cavity. The scope cover is inserted no more than the depth of the flange, while the scope can continue to be inserted by sliding it through the scope cover.