There can be serious injuries like many other sports, but it's usually the wrist and feet.
I actually injured my hand, while photographing this, as the ball came flying toward my camera, so I had to protect my camera. My wrist is still a bit sore.
But that's the hassards when you shoot sportsphotography :-)
I've played handball for 7 years! It was terrific to travel in the country and win! The ball is not hard - it's normal but it has smaller size. As for the injuries - it was very often to have some little blue spots all over my hands.
