My pup had loose stools at the beginning, for no apparent reason. He had 4-5 normal BMs and then a loose one. The vet didn't find worms but dewormed him anyway. Needless to say it got normal on its own a little later. Oh I was switching his food too to Nutro Puppy from BilJac. He's been okay for at least a month now. Maybe it's a puppy thing??
