A lid covering an interior of a medical waste receptacle base including a cover for covering the interior of the base. The cover has an opening for passing medical waste through it. The lid includes a chute for directing medical waste into the interior of the base and a closure for blocking the opening operatively connected to the cover for movement between an open position and a closed position. The lid includes a skirt operatively connected to the closure. The skirt sweeps medical waste on the chute toward the waste receptacle base interior as the closure moves from the closed position to the open position.