Grass seeds have a sharp tip and lots of backward pointing tiny spines. Once they attach to the hair of the foot, any movement such as occurs between the toes will tend to drive them forward where they’ll penetrate the skin and then migrate under the skin up the leg. This will cause significant pain and infection. At this point the dog is usually licking the foot and we will recommend we perform an anaesthetic to remove the grass seed by probing the wound. Already found one in here. This is the same boy who had the one in his eye. Just in here- look at that already starting to embed itself through the skin. If that keeps going it will run right underneath. So we’re going to take that out before it does. You can do this at home really easily. There!