Loss of Hand. Loss of Hand means complete severance, as determined by a Physician, of at least four (4) fingers at or above the metacarpal phalangeal joint on the same hand or at least three (3) fingers and the thumb on the same hand. We will consider such severance a Loss of Hand even if the hand, fingers or thumb are later reattached. If the reattachment fails and amputation becomes necessary, then We will not pay an additional Benefit Amount for such amputation.