
Why is my dog scratching and biting himself all the time?
Dogs scratch occasionally to relieve an itch, but constant scratching and biting—like rubbing their belly on the carpet nonstop or gnawing at their paws until they’re red—isn’t normal.
Puppies start losing their baby teeth around 12 to 16 weeks old, though this timeline can vary a bit by breed. Smaller breeds might start a week or two earlier, while larger ones sometimes take a little longer. You’ll probably notice tiny, sharp teeth popping up around your home—under the couch, in their bed, or even stuck in a chew toy. These are the deciduous teeth making way for the 42 adult teeth that will eventually fill their jaws.
During this phase, you might notice your puppy chewing more than usual. That’s their way of relieving the discomfort of new teeth pushing through. It’s smart to keep plenty of safe chew toys around—think rubber Kongs or rope toys. Avoid hard objects like antlers or Nylabones, which can damage their developing adult teeth.
Some puppies experience mild gum inflammation during teething. You might see a little drooling or notice they’re less interested in hard kibble for a few days. If their gums look very red or swollen, or if they seem to be in significant pain, it’s a good idea to check in with your vet. Rarely, baby teeth don’t fall out properly, which can cause crowding or alignment issues with adult teeth.
This is also a crucial time to start establishing good dental habits. Gently brushing your puppy’s teeth a few times a week with pet-safe toothpaste helps them get used to the routine. Many owners find that starting young makes adult teeth brushing much easier. You can also introduce dental chews approved by veterinary organizations to help keep their teeth clean as they grow.
In many European countries, there are strict regulations about pet care that include dental health. For example, in Germany, animal welfare laws require owners to provide appropriate chew items to support natural dental development. Similarly, in parts of the US, breeders must ensure puppies receive proper dental care before adoption, including monitoring teething progress.
By around 6 to 8 months of age, most puppies will have lost all their baby teeth and their adult set will be complete. Keep an eye out for any retained baby teeth during this transition—your vet can remove them if necessary to prevent future problems. With proper care during this stage, you’ll help set your puppy up for a lifetime of healthy teeth and gums.
Dogs scratch occasionally to relieve an itch, but constant scratching and biting—like rubbing their belly on the carpet nonstop or gnawing at their paws until they’re red—isn’t normal.
I knelt with my friend Lila in her North Carolina backyard last Sunday, her 2-year-old Golden Retriever, Max, trembling as she held a cotton ball soaked in rubbing alcohol near his paw
I knelt with my friend Jake in his rural Vermont backyard last Saturday, his 3-year-old Beagle, Daisy, whimpering as he gently held her ear open
Walks are a non-negotiable part of dog care, but the question of “how much” often stumps new owners—especially when their pup is on the larger side.
I sat with my friend Zoe in her Boston apartment last Tuesday, staring at her 2-year-old Bichon Frise, Lulu, who’d been licking a small pink rash on her paw for two days.
If you’ve ever noticed your dog wincing while chewing a favorite biscuit or caught a whiff of unusually strong breath, their dental health might be trying to tell you something.