A protective membrane for a medical luer connector may include a cover having an upper surface, a lower surface having a mating portion for coupling to a mating surface of the medical luer connector, and an outer perimetal surface. The protective membrane may further include a flexible pull tab extending from the outer perimetal surface of the cover, and an adhesive overlaying the mating portion of the lower surface for adhering to the mating surface of the medical luer connector.