Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Why Does My Dog Groan When Lying Down? 6 Vet-Reviewed Reasons

labrador retriever dog lying down against illuminated living room

We’ve all laid down after a long day and found ourselves groaning on the way down, so it should come as no surprise that dogs often do this too. There are actually a few reasons that your dog might be groaning as they lie down, and some of them are reasons for concern, so it’s important for you to pay attention to the other cues your dog is giving you to determine if you should be worried.

Dogster divider_v1_NEW_MAY_24_

The 6 Reasons Your Dog Groans When Lying Down

1. Contentment

One possible reason that your dog might be moaning and groaning is because they’re completely happy and content. Some dogs will make groans and other little noises of contentment while lying down in a comfy spot or getting attention from their favorite people. If your dog seems perfectly fine in every way and simply groans from time to time, then there’s likely no reason for you to be concerned.

west highland terrier dog lying on the carpet
Image Credit: Bogdanovich_Alexander, Shutterstock

2. Tiredness

Just like in humans, sometimes simply being tired can lead to groaning. Of all the times you’ve gone to lie down after a long day and let out a groan, did you do it intentionally? More than likely, it was just an automatic reaction. It’s common for dogs to do the same things, especially after a long day of traveling, exercise, or play.

If your dog has had a big day, then you likely shouldn’t be concerned about a little bit of groaning as they lie down. If they seem to be groaning a lot or groaning every time they change position, then you may need to investigate other causes.


3. Stomach Problems

There are many stomach problems that dogs can experience, from mild to severe. Mild to moderate stomach problems, like diarrhea, vomiting, bloating, and constipation, may cause your dog to groan as they lie down. More severe problems, like pressure from tumors, can also cause groaning and grunting as your dog lies down. You may also notice your dog groaning as they change positions, as sometimes the position change will exacerbate the discomfort they’re feeling.

Did you know that you can speak with a real vet online about your dog’s health?

To talk to a vet online, click on the image or button below:

PangoVet_Mention-in-Content Savings V1


4. Ascites

Ascites is what it’s called if your dog has excess fluid in their abdomen. This fluid is free-floating in the abdomen and not contained within an organ, so it does lead to noticeable swelling and distention of the abdomen. Ascites are indicative of an extremely serious medical problem, causes include liver failure, heart failure, cancer, and peritonitis.

If your dog is experiencing ascites, they will groan from pain and discomfort. Ascites will also make it more difficult for your dog to breathe, so they may groan as they’re trying to breathe better. If your dog’s abdomen is swollen and distended, it should be treated as a medical emergency, even if they don’t have a diagnosed medical condition. Some cancers and diseases can show very few signs until they become extremely advanced and deadly.


 5. Pain

Dogs experience pain for many reasons, from injuries to illnesses. Dogs with arthritis and other chronic pain conditions may groan as they lie down, stand up, or reposition themselves. Acute pain caused by new injuries or acute illnesses can also cause groaning from your dog. During a surgical recovery period, your dog may groan from pain as well.

Medical advancements have provided lots of great options for pain control for dogs, so it’s important for you to talk to your vet about the options if your dog seems to be groaning and in pain. It’s extremely important that you never give your dog any human medications, including over-the-counter pain medications and prescription narcotics. Some of these medications can be deadly for dogs. Always consult with your vet before giving any type of medication at home.

beagle dog sick sad on bed
Image Credit: Iryna Imago, Shutterstock

6. Confusion

As dogs age, they may begin to experience cognitive changes from canine cognitive dysfunction, or CCD. This condition is similar to dementia in humans and can cause your dog to experience confusion. New situations and low-light environments can exacerbate your dog’s confusion. Confused dogs might increase their vocalizations, including the use of groans and moans.

If your dog has had surgery and is still recovering from anesthesia, then you may also hear them groaning as they attempt to understand what’s happening around them. Dogs confused by anesthesia will start to feel better as the medication wears off. Cognitive changes causing confusion can be managed but may not be fully remedied by current medical options. Talk to your vet about the options for your dog, though.

Dogster divider_v1_NEW_MAY_24_

What to Do if Your Dog Is Groaning a Lot

If you’re having any difficulty determining if your dog is groaning from contentment or discomfort, then you should have them evaluated by your vet for safety. If your dog has started to groan when they lie down or change position and you’re also noticing other changes, like lethargy, inappetence, limping or stiffness, excessive licking or chewing, or yelping when handled, then it’s important that you have them seen by a vet as soon as possible. Since some of the causes of groaning are life-or-death conditions, it’s best to have your vet rule them out quickly.

sick border collie dog at the vet
Image Credit: antoniodiaz, Shutterstock

Dogster divider_v1_NEW_MAY_24_

Conclusion

Your dog may groan as they lie down for many reasons, but groaning is most commonly simply because your dog is content or tired after a long day. If your dog has only groaned once or twice, then there likely isn’t a reason for concern unless you’ve seen signs of an illness. However, if any of the conditions mentioned above sound like something your dog may be experiencing or they have a diagnosis of an illness or injury, then a vet visit is in order to keep your dog healthy, safe, and comfortable.

💛 🐶 Speak To a Vet Online From the Comfort of Your Couch!
PangoVet

If you need to speak with a vet but can’t get to one, head over to PangoVet. It’s our online service where you can talk to a vet online and get the personalized advice you need for your pet — all at an affordable price!


Featured Image Credit: Jaromir Chalabala, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

10 Best No-Shock Dog Training Collars in 2026 – Reviews & Top Picks

Have you got a pup who barks all day long while you’re out? As much as we hate to have to correct our...

Can Dogs Eat Whipped Cream? Vet-Reviewed Nutrition Facts & Info

Our dogs can eat all sorts of things we can. After all, they are omnivores just like us! However, that doesn’t mean everything...

Dorkie (Dachshund & Yorkshire Terrier Mix): Info, Pictures, Care & More

The Dorkie is a hybrid breed that combines the affection of the Dachshund and the playfulness of the Yorkie. It is a small...

10 Best Dog Toothpastes in 2026 – Reviews & Top Picks

Grooming a dog goes far beyond just brushing his coat and bathing him. Brushing your dog’s teeth is also essential, and can help...

More related

Do Dogs Have Lips? Vet-Verified Canine Mouth Anatomy Facts

Dogs’ mouths are surprisingly subject to a lot of speculation, misconceptions, and curiosity. Anyone who spends a lot of time with dogs will...

Balls: The Right and Wrong Way to Play Fetch

Hi, I’m Dr. Karyn! Read my introduction to learn more about me and my five funny dogs, Poppy, Bailey, Kodah, Ned, and Fred....

9 DIY Dog Bandana Plans You Can Make Today (With Pictures)

Dressing up dogs can be fun for dog owners, but many dogs may not be on board with wearing a fuzzy sweater on...

10 Best Dog Toothpastes in 2026 – Reviews & Top Picks

Grooming a dog goes far beyond just brushing his coat and bathing him. Brushing your dog’s teeth is also essential, and can help...

Keep reading

9 Best Dog Foods for Bullmastiffs in 2026 – Reviews & Top Picks

With so many dog food brands available, it can be difficult to know exactly which is right for your pooch. Some breeds might need higher protein due to their higher activity levels, and some need to focus on weight management....

Bullmastiff dog standing outdoor

Scrumbles Dog Food Review 2026: An Expert’s Breakdown

* Save 15% With Subscribe & Save Searching for the perfect dog food can be a challenge. Sometimes you think you’ve got it, and a suddenly fussy dog turns his nose up at dinner, and you’re back to square one....

DOG_SAPR_Scrumbles Dog Food

Cesar Dog Food Review 2026: Pros, Cons, Recalls and Guide

Review Summary Cesar has been a staple in the pet food section of grocery and big box stores for decades. This food is especially popular with small dog owners because of its small package sizes and Westie mascot. They offer...

Dogster_Cesar Dog Food Review

11 Best Dog Foods for Maltese Tear Stains in 2026 – Reviews & Top Picks

Tear stains are caused by excessive tear production or an inability to adequately dispose of excess tears. While it is true that certain breeds, including the Maltese, are more likely to exhibit tear stains, that doesn’t mean you have to...

Maltese dog eating from a bowl

Should Dogs Eat the Rainbow? Vet-Reviewed Eating Tips for Canines

Dogs are often considered to be carnivores that require a meat-heavy diet. Still, there are some similarities between a dog’s diet and a human’s diet. However, they are not omnivores like we are. Dogs may benefit from eating the rainbow,...

Colorful assorted fruits and vegetables

Is There Horse Meat in Dog Food? Separating Truth From Fiction

There is a great deal of information floating around about dog food and its ingredients, and it can certainly be difficult to tell facts from fiction. For example, you may have heard that there is horse meat in dog food....

Fresh horse meat on a platter

8 Best Dog Foods for EPI German Shepherds in 2026: Reviews & Top Picks

Exocrine pancreatic insufficiency (EPI) is a disease that severely impacts the pancreas’ ability to produce digestive enzymes. EPI can be a problematic condition for your canine to deal with, and it can be difficult for you as the dog owner...

german shepherd resting on the grass

Royal Canin vs. Purina Pro Plan Dog Food: 2026 Comparison, Pros & Cons

With so many dog food options available, choosing the right one for your pet can be hard. Royal Canin and Purina Pro Plan are both top-of-the-line foods, but each has its advantages. Purina Pro Plan is more affordable than Royal...

Dogster_Dog Food Royal Canin vs Purina Pro Plan