Hello all we are new here and found you looking for info on tail pockets. Our puppy is around 16 weeks. We just discovered that he was sore and upon further inspection found weeping and some smell redness and swelling. He has a tight screw tail apparently I've discovered and now I'm beside myself. I am happy to have found you guys to help us we are glad t be here!! We will be taking him to the vet Monday to get boosters and more about the problem.