This paper amends and adds recent information to Paul A. Janssens' earlier article on the prehistoric paintings of human hands in the cave of Gargas, France. Possible diagnoses for the deficiencies found in many of the hand pictures, and some non-medical theories of explanation, are reviewed. It is concluded that the hands used as stencils were mutilated and that the images were deliberately placed within the cave and were not the by-products of some other activity.