Why does my dog eat wood?

Dogs chew on wood because they like chewing on things. That’s why you see dogs constantly playing with chew toys, and why chew bones and treats are so popular with dogs. The problem with wood is that it’s not the best thing for your dog. While it’s fairly common for a dog to chew on wood, especially if you use sticks or small logs to throw to them when you’re playing fetch, your dog will thank you if you help them lay off the wood.
The problem with your dog eating wood is two-fold. First, small pieces of wood can lodge splinters in the mouth and esophagus, causing damage. Second, large pieces of wood can cause even greater problems, including perforated intestines or stomach lining, and obstruction of your dog’s bowels.