Add Yahoo as a preferred source to see more of our stories on Google. Father holding baby with dirty diaper. Poop, feces, stool — whatever you call it, there's no denying the unpleasant smell. While ...

Few things make new parents study something as closely—or as nervously—as the contents of a diaper. Whether you’re changing your first newborn blowout or tackling your toddler’s latest potty surprise, ...