Should I Worry If My Dog Twitches During Sleep?

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Is your dog twitching while sleeping? Chances are they're just having some interesting dreams. However, there are actually a few other explanations for a twitching dog. Most of the time twitching is just normal doggy behavior, but some cases may be due to factors like stress, advanced age or an underlying health condition.

Here's everything you need to know about dog twitching, including when you should take your pup to see a veterinarian.

Why Is My Dog Twitching?

Dog twitching is an involuntary muscle spasm that occurs rapidly and suddenly in almost any part of a pup's body. Twitching typically happens in the back legs, usually while your dog is sleeping.

Common reasons for dog twitching include:

According to Labrador Training HQ, if your dog has been exposed to certain toxins, such as chocolate or laundry detergent, the poisoning from those toxins may cause your dog to twitch as well. Age may also account for a twitching dog. Puppies, especially newborns, twitch often because it's part of their "healthy development," according to PetHelpful. Puppies are especially active dreamers because they're strengthening their muscles and their brains.

Do Dogs Twitch While Dreaming?

A dog twitching while sleeping is a good indicator that they're deep in snoozeland. Dogs have the same sleep stages as humans, including short-wave sleep and rapid eye movement. Oftentimes, your dog will look like they're kicking the air when they're dreaming.

Portrait of a sleeping Golden Retriever puppy, lying on a cozy blanket. Close up.

On average, dogs sleep for about 12 to 14 hours a day. During the sleep stages, it's common and normal for a dog to twitch their tail or their entire body — they may even bark. Think of this as your dog communicating in their sleep.

Dogs also twitch during nightmares or night terrors, Tufts University says. Though this can be difficult to watch, they suggest not waking your dog unless it's clear that they're experiencing distress. If you need to wake them, gently call their name until they come to. Do not touch a dog that's having night terrors or you'll risk getting bitten.

Do Dogs Twitch While They're Awake?

A dog can experience rapid muscle spasms both at night and during their waking hours. In healthy dogs, a twitch once in a while is no cause for concern, especially if they're a senior dog. Environmental or situational stimulators, such as thunder or strangers in the home, can cause a dog to twitch while they're awake. If the twitching stops when the stimulus leaves, your pup was probably just reacting to the situation at hand.

Some dogs twitch as a nervous habit, just like their human counterparts, or if they're experiencing separation anxiety. If your dog has general anxiety, they may also twitch or tremble. By speaking with your vet, you can find out how to better manage these conditions and make your pup feel more comfortable.

When Should You Call the Vet?

If your dog is experiencing full-body tremors that last longer than a quick spasm or that make their body go rigid, they may be having a seizure. In these scenarios, you should immediately call an emergency vet. Other signs of a seizure include:

  • Vomiting
  • Foaming at the mouth
  • Passing a bowel movement
  • Urinating

Prior to having a seizure your dog may seem anxious or restless. During a seizure, your dog may also keep their eyes wide open, whether they're asleep or awake, and exhibit a "deer in headlights" look, says Pads and Paws, and they will often act confused or dazed after the event. It's also important to recognize that seizures don't always have a classic appearance. Sometimes they can manifest as focal tics or tremors; therefore, looking for other indications of seizure activity, such as the described behavioral changes, can be helpful in deciding whether or not your dog has experienced a seizure versus a normal muscle twitch. If you're ever suspicious of seizure activity, you should contact your vet right away for guidance.

Significant and extended periods of twitching can be symptomatic of diabetes, hypothermia, kidney and liver issues or poison ingestion, writes vet Justine A. Lee for Pet Health Network — all of which will require vet treatment. Common toxins that your dog may ingest include rodent poisons, medications and human foods that aren't safe for pets. If you suspect poisoning, call an emergency vet right away.

More often than not, your furry friend is twitching in their sleep because they're enjoying a good dream. But if you're ever in doubt, it's always a good move to give your vet a call.

Contributor Bio

Christine O'Brien

Christine O'Brien

Christine Brovelli-O'Brien, Ph.D., is a writer, STEAM educator, and devoted pet mom. She's a professional member of the Cat Writers' Association (CWA) and has written for industry-leading companies and organizations, including What to Expect When You're Expecting and NIU STEM Read. Find and follow Christine on Instagram and Twitter @brovelliobrien