Is it OK for dogs to bite their tails? Many dogs can be observed biting their tails if they are experiencing an allergic reaction to fleas, ticks, or mites. These allergic reactions are often worse when they are younger, with the most severe reactions typically presenting in dogs between three months and six years of age.
How do I stop my dog from biting his tail? If you see your dog biting its tail, give them a firm “stop” or “no” command to make them stop. They might not get the idea at first, but over time, they will understand. You can make the training go even more smoothly by giving your dog a high-value treat when they stop biting their tail on command.
Why is my dog biting his back end? Full or infected anal glands
If these glands become full or infected, they can be painful or itchy for your dog. If your dog is chewing his tail or scooting (dragging his bottom across the floor), he might have full anal glands that need to be expressed (basically popped) by your vet.
Is it normal for my puppy to bite his tail? At one time or another, most puppies or dogs chase or bite their tails. It’s something to do, and it’s fun. Many dog owners find it amusing. But if tail biting is not corrected early enough, however, it can become canine obsessive-compulsive disorder (OCD).