tuesday a stray pitbull puppy (about 6 months) came into my yard 2 play with with my other pits.. he stayed.. lol.. question i have is he has spots between his shoulders tha are thin and the skin has some bumps and thought itb might be mange? he doesnt scratch at it much, gave hi a oatmeal bath and he didnt lose any hair around the areas?.. if he had it wouldnt the hair fall out? what do you think???