Skiers thumb or Gamekeepers thumb is an injury to the ligament of the thumb due to a hyperabduction motion of the thumb (when the thumb moves outward far away from the rest of the hand). The injury was named after skiers and gamekeepers since it was commonly seen in these populations but can occur to anyone. Skiers Thumb symptoms include thumb pain, thumb laxity or “loose” or unstable sensation, weakness of the thumb, and swelling or bruising. Your therapist will assess the condition of your thumb and create a treatment plan to get you back on track.