Pictures! They are not the best though, it is hard to man-handle a 4 year old by yourself to get pictures of his mouth. But they do show the bruising. As you can kind of see in one picture, the palate itself is not bruised. The area spans about 3 "creases" of his gum. I think this is from him chewing the bit and we had tried adjusting the bridle length to see if it alleviated it at all.