How to Stop a Puppy From Biting - Easy Tips to Stop a Puppy from Biting Preview: Nipping and biting during teething is normal. Puppies need to exercise their teeth by chewing on things. They need to do this. However, you need to work during this period to teach them to inhibit the strength of the bite so they aren't bearing down, and to redirect some of this habit on to their toys. First, let's start with a few of the basic principles that come into play with all behavioral problems, including the problem puppies biting and mouthing people, and the wrong objects. And READ this book for more!