What could be wrong with my horses knee?
my horse is a 13 year old mare and she is my show horse. She has always has a bump on her knee that is abnormal. it is about the size of a golf ball sticking out of her knee. its on her front left knee and she is really favoring it. whenever we stop in the arena for more than five minutes she bends her knee and rests her knee. she sleeps with it bend. she doesnt mind when we touch it though.