Reasons Why Dogs Grind Their Teeth

Sometimes your dog starts grinding its teeth and you think, “Oh no, they must be in pain.” After all, that’s what we do when we have a headache or a stomach ache. However, your dog is likely not in pain at all. In fact, teeth grinding—called bruxism—is actually very common among dogs of different breeds and ages. Some even grind their teeth when they’re super happy! Though teeth grinding can be caused by an underlying health issue or disease like kidney failure or rabies, that’s not the case for most dogs. So why are our canine companions grinding their teeth? There are several possibilities:


Dogs grind their teeth for a variety of reasons, and many of the underlying causes are similar to the reasons why humans grind their teeth.

  • Anxiousness: Dogs have stress and anxiety just like we do. When they’re anxious or stressed, they may grind their teeth as an outlet for that stress. This is also common behavior in dogs who suffer from separation anxiety or social isolation.
  • Boredom: If you have ever found yourself grinding your teeth while sitting in traffic behind a slow driver on the highway—or even worse, if you’ve done it while stuck at home waiting for dinner to finish cooking—then you know how boring (and painful) it can be when nothing seems to be happening around you! Dogs can get bored too! If you leave them alone for long periods of time without providing adequate stimulation or exercise, then this could lead to boredom-related grinding as well.
  • Exhaustion: Just like humans who are tired from overworking themselves can feel sleepy after dinner and need a nap before bedtime, dogs will often feel exhausted after chasing balls all day long (or even just playing fetch!) and may fall asleep after eating dinner with little warning! It’s likely that these animals spend so much energy throughout each day simply because they’re not getting enough restful sleep at night due either from excitement about upcoming activities tomorrow morning or because they’re still recovering from something stressful earlier today while trying desperately not thinking about anything else besides what happened earlier today…

Sleep Bruxism

  • Sleep bruxism. Dogs may grind their teeth when they are sleeping, especially if they have a snoring problem that causes them to wake up during the night and sleep restlessly.
  • Dreaming bruxism. Dogs may also grind their teeth when they’re dreaming; even if you don’t see it, your dog’s dream-bruxing could be causing him pain.
  • Nervousness bruxism. Some dogs tend to get nervous or anxious about certain things in life, like thunderstorms or fireworks, which can cause them to grind their teeth at night as well (and this is especially true for breeds such as terriers).  

Stomach Discomfort

Dogs can grind their teeth when they are in pain, sick, or nervous. It is a sign that something is wrong with your dog’s health and you should take them to the vet immediately. If you notice that your dog has been grinding their teeth more than usual, it may be a sign of an underlying condition such as dental disease or arthritis.

In addition to this, dogs can also experience stomach discomfort which causes them to grind their teeth while they sleep or rest during the day. This behavior may occur if your dog has eaten something that doesn’t agree with him/her or if he/she suffers from indigestion because of stress related issues like anxiety or separation anxiety (see our guide here: [Link]).

If you notice any of these symptoms in yourself or others around you then there are ways for us all to prevent them!

Anxiety & Nervousness

Dogs grind their teeth when they are anxious or nervous. This can happen when your pet is left alone, or in a new environment. Grinding may also be triggered by thunderstorms, fireworks and other loud noises. If you notice your dog grinding her teeth more often than usual, it’s important to take her to the vet for a checkup. Your vet will examine the canine’s mouth for any signs of injury and give you recommendations on how to prevent tooth damage in the future.

Bone Malformation

Bone malformation is a congenital condition that happens when a puppy’s teeth do not develop properly. This can happen when the mouth or tongue are unusually short (which causes the teeth to grow at an odd angle).

It is common in dogs under 6 months of age, and it does not cause pain or harm to your dog. As long as you have regular checkups with your vet, this will usually go away on its own.

There are many reasons why dogs grind their teeth.

There are many reasons why dogs grind their teeth. Some of these reasons are rare, while others are more common and can be treated with simple home remedies.

Your dog could have a toothache or a sore mouth. If you notice your dog licking his lips often, this may be a sign that he is in pain. Try giving him some soft treats or rawhide chews to see if that helps. If it does, then you should take him to the vet as soon as possible so they can perform an examination to figure out what’s going on and how best to proceed with treatment options for your pooch!