The present invention is an ostomy-bag cover that provides a waterproof covering for an ostomy bag. This permits a patient wearing an ostomy bag to shower or bathe without getting his or her ostomy bag wet. In some embodiments, the ostomy-bag cover is constructed such that the patient can engage in water related activities, including swimming, while wearing the ostomy-bag cover over the ostomy bag and prevent the ostomy bag from getting wet. In some embodiments, the ostomy-bag cover includes a resealable opening configured to allow the patient to empty the ostomy bag without the need to remove the ostomy-bag cover. In other embodiments, the ostomy-bag cover includes a waterproof exhaust vent to allow air to be removed from the ostomy-bag cover.
