A disinfection cap is provided with a cap main body and a wiping body held by the cap main body. The cap main body includes a cap side locking section that prevents pullout of the cap main body by engagement with a medical connector side locking section. The wiping body includes an impregnation section impregnated with an antiseptic solution and is movable with respect to the cap main body so as to wipe at least the surface of a top face wall, the inner peripheral face of an opening of the top face wall, or the surface of a valve body in a male connector connection section of a medical connector with the impregnation section with the cap side locking section engaged with the medical connector side locking section.
