A HANDS-FREE BREAST PUMP SYSTEM (100) IS DISCLOSED. A BREAST SHIELD (610) HAVING AN ADHESIVE INNER SURFACE (614) FOR ADHERING TO A WOMAN’S BREAST IS DISCLOSED. THE BREAST SHIELD MAY BE CONNECTED TO AN ADAPTER FOR TRANSFERRING A VACUUM GENERATED BY A PUMP (30) TO THE BREAST. THE ADAPTER ALSO ALLOWS MILK EXPRESSED FROM THE BREAST TO DRAIN FROM THE ADAPTER TO A CONTAINER (674). IN THE ALTERNATIVE, THE BREAST SHIELD MAY FORM PART OF A BREAST SHIELD ADAPTER SYSTEM (600) WHICH IS CONNECTED TO A CONVENTIONAL BREAST SHIELD (670) BY A DRAIN LINE (646) SO THAT A CONVENTIONAL BREAST PUMP SYSTEM (678) IS USED TO SUPPLY A VACUUM AND TO COLLECT THE MILK. PUMP SYSTEM (678) IS USED TO SUPPLY A VACUUM AND TO COLLECT THE MILK. THE MOST ILLUSTRATIVE DRAWING IS FIG. 11.