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4 min read

11 Subtle Signs of Discomfort Every Dog Parent Should Know

Dogs can’t tell us when something’s wrong, but they do give us clues. From subtle behavior shifts to changes in appetite or energy, here are 11 signs your dog might need a little extra care.

Vet Approved

Rebecca MacMillan Veterinarian

Reviewed & Checked By

Rebecca MacMillan

Veterinarian BSAVA MRCVS & Author

This information is current and up-to-date in accordance with the latest veterinarian research. Learn more

Older dog panting outdoors laying in grass

Written by

Rebecca MacMillan Veterinarian

Rebecca MacMillan

Last updated: October 16, 2025

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Is your dog acting a little “off” lately?

Maybe they’re quieter than usual, or not rushing to the food bowl the way they normally do. Dogs can’t tell us when they’re uncomfortable, but they do show us in small ways. The key is knowing what to look for.

In this article, we’ll explore 11 common signs your dog may not be feeling their best, and what you can do to help.

First, Why Small Changes Matter

Just as in people, different dogs will react to discomfort in different ways. Some breeds are more stoic than others and tend to hide their symptoms. Personality can also play a part.

Different conditions can bring varying levels of discomfort. For example, a broken nail compared to a joint issue. Both may require attention, but they sit at opposite ends of the scale.

Some dogs may show all eleven of the warning signs on our list, while others may only show one or two. Any changes in your dog’s health or behavior should be checked out by a veterinarian.

1

Changes in Personality

Older dog who has discomfort looking up at camera. Dog has gray muzzle.
Some dogs start to have noticeable personality shifts if they have regular discomfort.

When owners bring their pet to the vet, many say their dog “just doesn’t seem their normal self.” In most cases, that means their dog is more withdrawn or lethargic than usual.

A dog that isn’t feeling well will often act out of character. A normally bouncy or excitable dog might suddenly seem subdued. Some dogs can also become grumpier or more irritable, especially if a sensitive area is touched.

Growling, showing teeth, or even snapping can occur, not out of aggression, but because something doesn’t feel right.

2

Reduced Appetite

Labrador on ground with silver food bowl
When dogs are uncomfortable, appetite is often one of the last things to go.

Most dogs live to eat, so a loss of appetite can signal something’s wrong. Some dogs may still be tempted by high-value treats, while others might turn down food altogether.

However, this sign alone shouldn’t be relied upon, especially for ongoing issues. Many dogs continue to eat even when dealing with hip and joint discomfort or dental problems. Don’t wait until your dog stops eating entirely. Appetite is often one of the last things to change.

3

Changes in Movement

Spaniel type dog laying in green grass in the sun.
When a dog starts to have discomfort, they will often times have a reduction in activity level.

Dogs that are uncomfortable often change how they move. They’ll guard the affected area to protect it and avoid making it worse.

For example, a dog with an injured paw might shift their weight to the opposite leg, causing a limp. Stiffness after resting can also indicate discomfort. Many dogs with joint issues appear stiff until they’ve “warmed up” a bit.

A dog that’s not feeling well may also struggle with normal activities such as climbing stairs, jumping onto furniture, or stepping over objects. They may appear clumsy or reluctant to move at all.

4

Excessive Drooling

Irish Setter dog drooling on the grass
Excessive drooling can signal many different issues.

Increased drooling can sometimes point to oral discomfort. Issues such as a tooth root abscess, gum irritation, or a small mass in the mouth could cause this. You may even notice blood in the saliva or a foul smell on your dog’s breath.

Drooling can also occur with nausea. Dogs with tummy troubles like pancreatitis or bloating may drool more than usual. If your dog doesn’t normally drool, this sudden change can be an obvious sign that something’s off.

5

Increased Grooming

Old small dog is licking its paw on the bed
Excessive licking or grooming can indicate a number of issues.

Licking or chewing at one particular spot on the body can suggest discomfort in that area, especially if it’s new behavior.

For example, a dog constantly licking a paw might have a foreign object stuck there, like a grass seed, or a cracked nail. Some dogs will lick at stiff or sore joints in an attempt to soothe them. Over time, you might notice saliva staining, or fur that turns a pinkish-brown color.

6

Toileting Issues

Small dog outside going to the bathroom
A change in bathroom habits could mean there’s a problem that needs attention.

Changes in your dog’s bathroom habits can also signal an underlying problem. Straining to pass stools, frequent loose stools, or constipation might all point to digestive discomfort.

Conditions such as pancreatitis, blockages, or even certain types of cancer can cause changes in stool consistency.

Dogs that start having accidents indoors might also be struggling to get outside quickly enough, either from discomfort or mobility issues.

Straining to urinate, passing small amounts often, or seeing blood in the urine are also signs to contact your vet. These symptoms can be uncomfortable and shouldn’t be ignored.

7

Vocalizing More Than Normal

Dog barking outdoors in the green grass
If your dog has become suddenly more vocal, it can mean there’s an underlying issue that needs addressed.

Whining, crying, or yelping can all indicate something’s wrong. Dogs often make noise when they first experience discomfort, or when a sensitive area is touched.

That said, dogs with long-term issues rarely vocalize randomly. Many owners say, “He’s fine — he never cries out,” but gradual discomfort often develops so slowly that dogs adapt to it silently.

8

Decreased Social Interaction

Dog barking outdoors in the green grass
When dogs feel discomfort, many times they become less social.

Dogs that aren’t feeling well often become less social. They might rest more, avoid playing, or choose to be alone. Some even hide in another room to avoid being disturbed.

On the other hand, a few dogs do the opposite. They become clingier, seeking extra reassurance from their owners. Both behaviors can signal that your dog isn’t feeling quite right.

9

Shaking or Trembling

Dog looking shyly at the camera
If your dog is shaking or trembling, it could be due to discomfort of an underlying issue.

Trembling can happen for many reasons. Sometimes it’s nerves or cold, but it can also be a response to discomfort.

If shaking is new for your dog, get it checked out. Trembling can also occur with fever or neurological issues, so your vet will need to rule out other causes.

10

Excessive Panting

Dog is panting excessively laying on ground
Excessive panting can be a signal of an underlying problem.

Most of us know that dogs pant to cool off, but panting can also happen for other reasons. If your dog is panting heavily even when resting or indoors, something may be off.

Unexpected panting can be caused by stress, fever, or general discomfort. If it seems unusual for your dog, a vet visit is a good idea.

11

Reduced Exercise

Golden Retriever laying down in grass tired
If dogs are dealing with some type of discomfort, it’s not uncommon to see them start to slow down.

Dogs that don’t feel their best are less likely to enjoy their usual walks or playtime. They might hesitate to leave the bed, slow down on walks, or avoid games they used to love.

A dog that suddenly stops wanting to move or play may be experiencing discomfort.

Frequently Asked Questions

What should I do if my dog isn’t feeling well?

If your dog shows any of these signs, it’s always best to have them checked by a vet. Never give human medication unless it’s specifically prescribed for your pet. Some medicines that help people can be dangerous for dogs.

Your veterinarian will examine your dog, discuss your observations, and determine what might be causing the problem.

What will my veterinarian do?

Your vet will take a history and perform a full examination. Sometimes the cause is obvious, like a limp or visible swelling. Other times, further investigation is needed, such as x-rays, blood tests, or an ultrasound.

Treatment will depend on the diagnosis. It may involve medication, rest, or lifestyle adjustments to help your dog feel better and get back to their usual self.

Are my dog’s behavior changes from aging or discomfort?

It can be tricky since the two often overlap. Older dogs do slow down naturally, but sudden changes — like struggling to get up, limping, or hesitating to climb stairs — are worth checking out. If your senior dog’s habits shift quickly or they seem uneasy, schedule a checkup to rule out anything more serious.

How can I make my dog more comfortable?

Provide a soft bed in a quiet, easy-to-access area. Keep food and water bowls at a comfortable height, and consider shorter, gentler walks if your dog seems stiff or tired. Warmth, reassurance, and a calm environment can make a big difference while you wait to see your vet.

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