I feel a bit bad as Ive not noticed before, so not sure if he had it when he came to us a couple of months ago, or if its recent. He lives outside normally but Ive bought him in to bond with Peggy and Tonic and see it when he was stretched out. I picked him up for a look and it appears there is no soreness, one foot is ok the other has a clump of matted fur. Will it grow out or should he be taken to have it shaved x