Why is my old dog restless? 10 causes and how to help

You're lying in bed at night, and you hear it again: the click of nails on the floor, back and forth, back and forth. Or maybe it's daytime and your senior dog just can't seem to settle. They stand up, circle, lie down, get up again. They pant. They pace. They follow you from room to room, then walk away. They look uncomfortable in every position. Something is clearly wrong, but they can't tell you what it is.

Restlessness in senior dogs is one of the most common concerns owners bring to their veterinarian, and for good reason. Unlike a sudden yelp or a visible limp, restlessness is a vague symptom that can stem from dozens of different causes, ranging from mild discomfort to serious medical conditions. The behavior itself is your dog's way of saying, I can't get comfortable, and I need help.

This guide will help you understand what's behind your old dog's restlessness, how to identify the most likely cause, when to seek veterinary care, and what you can do at home to help your aging companion find some peace.

What does restlessness look like in senior dogs?

Before diving into causes, it's worth clarifying what "restlessness" actually looks like, because owners describe it in many ways. Restlessness in senior dogs can include any combination of these behaviors:

• Pacing: Walking back and forth without purpose, often along the same path
• Inability to settle: Lying down briefly, then getting up and moving to a new spot, over and over
• Circling: Walking in circles before lying down, or circling without lying down at all
• Panting: Heavy breathing that's not related to heat or exercise
• Whining or whimpering: Soft vocalizations that seem to accompany the restless movement
• Following you everywhere: Shadowing you from room to room with an anxious energy
• Repeatedly asking to go outside: Going to the door, going outside, then immediately wanting back in
• Repositioning constantly: Shifting weight, stretching, adjusting, unable to find a comfortable position
• Staring: Standing and staring at nothing, or staring at you as though asking for help
• Night waking: Getting up multiple times during the night when they previously slept through

The key feature is that the behavior is new or has worsened. All dogs get up and move around occasionally. What you're watching for is a change from your dog's normal pattern, a level of restlessness that seems excessive, purposeless, or distressed.

10 common causes of restlessness in senior dogs

1. Pain and discomfort

Pain is the single most common reason senior dogs become restless. A dog in pain can't get comfortable because every position puts pressure on something that hurts. They lie down, the weight aggravates their hip. They shift to the other side, their elbow aches against the floor. They stand up to relieve the pressure, but standing hurts their spine. So they pace, circle, and reposition endlessly, searching for relief that never quite comes.

Common sources of pain that cause restlessness in older dogs:

• Arthritis: By far the most common. Affects an estimated 80% of dogs over age 8. Joints stiffen, swell, and ache, especially after rest or in cold weather
• Spinal pain: Disc disease, spondylosis, or spinal arthritis. Back and neck pain often produce restlessness that owners can't localize
• Abdominal pain: Pancreatitis, gastrointestinal discomfort, bloat, bladder stones, or organ enlargement. Dogs with belly pain often can't lie comfortably
• Dental pain: Tooth root abscesses, fractured teeth, or severe periodontal disease. The pain may not be obvious unless you look inside the mouth
• Cancer pain: Tumors pressing on nerves, organs, or bones can cause chronic discomfort that makes settling difficult

How to tell if pain is the cause: Watch for other subtle pain indicators alongside the restlessness. Limping or stiffness, reluctance to jump or climb stairs, decreased appetite, licking or guarding a specific area, panting, a hunched posture, or flinching when touched. Many senior dogs with chronic pain show no single dramatic symptom. Instead, they show a constellation of small changes that add up.

Dogs are hardwired to hide pain. A stoic survival instinct means your dog may be in significant discomfort long before they show obvious signs. If your senior dog is restless and you can't identify why, pain should always be the first consideration, not the last.

2. Canine cognitive dysfunction (dog dementia)

Canine cognitive dysfunction syndrome (CDS) is the dog equivalent of Alzheimer's disease, and restlessness, particularly at night, is one of its hallmark symptoms. Studies suggest that over 60% of dogs aged 11 and older show at least one sign of cognitive decline.

CDS causes changes in the brain that disrupt normal sleep-wake cycles, spatial awareness, and emotional regulation. Dogs with cognitive dysfunction often:

• Pace or wander, especially in the evening and at night (a behavior sometimes called "sundowning")
• Appear confused or disoriented in familiar surroundings
• Stare blankly at walls, corners, or into space
• Get "stuck" in corners or behind furniture, unable to figure out how to back up
• Forget house training and have indoor accidents
• Fail to recognize familiar people or pets
• Change their sleep-wake cycle, sleeping more during the day and being restless at night
• Seem anxious or clingy without clear cause
• Lose interest in activities they used to enjoy

The acronym DISHAA is used to assess CDS: Disorientation, Interaction changes, Sleep-wake cycle disruption, House soiling, Activity level changes, and Anxiety. If your dog shows signs across multiple categories, cognitive dysfunction is a strong possibility.

CDS is a progressive condition, but early intervention can slow its progression. If you suspect cognitive decline, see your vet sooner rather than later. Medications like selegiline (Anipryl), dietary changes, supplements, and environmental enrichment can all make a meaningful difference.

3. Anxiety and stress

Anxiety increases with age in many dogs. The world becomes more confusing and less predictable as senses decline, pain develops, and cognitive function diminishes. A dog who was calm and confident their whole life may become anxious and restless in their senior years.

Common anxiety triggers in senior dogs:

• Separation anxiety: Often worsens with age, particularly if the dog is losing vision or hearing. They become more dependent on your presence for security
• Noise sensitivity: Senior dogs can become more reactive to sounds they previously ignored, like thunderstorms, fireworks, or even household appliances
• Changes in routine: A new schedule, new family members, home renovations, or a move can be profoundly unsettling for older dogs who rely on predictability
• Loss of a companion: The death of another pet or a family member leaving the household can trigger anxiety-driven restlessness
• Generalized anxiety: Some senior dogs develop a baseline anxious state that isn't tied to a specific trigger. This may be related to cognitive decline, chronic pain, or sensory loss

Anxiety-driven restlessness often looks like pacing, panting, following you, whining, lip-licking, yawning (a stress signal in dogs), trembling, and an inability to relax even in a safe, familiar environment.

4. Gastrointestinal discomfort

A dog with an upset stomach, nausea, or intestinal discomfort will often become restless because lying still makes them feel worse. Think about how you feel when you're nauseated: you shift positions, get up, pace, and can't settle. Dogs do the same thing.

Signs that GI discomfort is driving the restlessness:

• Lip licking, drooling, or frequent swallowing (classic nausea signs in dogs)
• Grass eating or eating unusual items
• Gurgling stomach sounds you can hear across the room
• Vomiting or dry heaving
• Diarrhea or straining to defecate
• Refusing food or eating reluctantly
• The "prayer position": front end down, rear end up, stretching the abdomen
• Restlessness that worsens after eating

If your dog is retching without producing anything, has a distended or hard abdomen, is drooling excessively, and appears in significant distress, these are signs of bloat (gastric dilatation-volvulus), which is a life-threatening emergency. Do not wait. Get to a veterinarian immediately.

5. Heart disease

Heart conditions become increasingly common as dogs age, and restlessness can be an early sign of cardiac problems that owners often overlook. When the heart isn't pumping efficiently, the body doesn't get enough oxygen, which creates a sense of unease and discomfort that makes the dog unable to settle.

Signs that heart disease may be contributing to restlessness:

• Restlessness that worsens when lying flat (fluid in the lungs makes breathing harder in a lying position)
• Coughing, especially at night or after resting
• Breathing that seems faster or more labored than normal
• Reduced exercise tolerance, tiring more quickly on walks
• Fainting or collapsing episodes
• A swollen belly (from fluid accumulation)
• Bluish or grayish gums instead of healthy pink

Dogs with congestive heart failure may prefer to sit or stand rather than lie down because lying flat allows fluid to accumulate in the lungs. This forced upright position contributes to exhaustion and restlessness, particularly at night.

6. Urinary problems

A dog who urgently needs to urinate, or who is experiencing pain or discomfort associated with urination, will be restless. Urinary problems are common in senior dogs and can range from infections to stones to incontinence.

Urinary causes of restlessness include:

• Urinary tract infection (UTI): Creates urgency and discomfort. The dog may pace, ask to go out frequently, and produce only small amounts of urine
• Bladder stones: Can cause pain and urgency, especially when the stones shift position
• Kidney disease: Increased urine production means the dog needs to go more often, leading to restlessness when they can't access the outside
• Cushing's disease: Causes excessive thirst and urination, which can make dogs restless at night when they need to go but can't
• Prostate problems: In intact male dogs, an enlarged prostate can cause urinary discomfort and restlessness
• Diabetes: Increased thirst and urination are hallmark symptoms

If your dog's restlessness is accompanied by frequent urination, straining to urinate, blood in the urine, increased thirst, or accidents in the house, a urinary issue is likely involved.

7. Respiratory difficulties

When a dog can't breathe comfortably, they can't rest. Respiratory problems are a significant but sometimes underrecognized cause of restlessness in senior dogs.

Respiratory conditions that cause restlessness:

• Laryngeal paralysis: A progressive condition where the larynx doesn't open fully, restricting airflow. Common in large breed dogs like Labrador Retrievers. Causes noisy breathing, panting, and restlessness that worsens in heat or with exertion
• Collapsing trachea: Common in small breeds like Yorkies, Chihuahuas, and Pomeranians. The trachea flattens during breathing, causing a honking cough and breathing difficulty
• Lung disease: Pneumonia, lung tumors, or pulmonary fibrosis can all impair breathing
• Pleural effusion: Fluid around the lungs compresses them and makes breathing effortful
• Brachycephalic airway syndrome: Flat-faced breeds like Bulldogs and Pugs have inherently compromised airways that worsen with age

Dogs with breathing difficulty often stand with their neck extended and elbows pointed outward to open the chest, refuse to lie down, pant with an open mouth, and appear anxious. These signs are always worth urgent veterinary attention.

8. Hormonal imbalances

Endocrine disorders are common in senior dogs and can cause restlessness through multiple pathways: increased thirst and urination, increased hunger, metabolic changes, and direct effects on the nervous system.

The two most common hormonal causes of restlessness:

• Cushing's disease (hyperadrenocorticism): The body produces too much cortisol, causing excessive thirst, excessive urination, increased appetite, panting, a pot-bellied appearance, hair loss, and restlessness. The elevated cortisol creates a chronic state of "stress" that prevents the dog from fully relaxing
• Hypothyroidism: While hypothyroidism more commonly causes lethargy, some dogs with thyroid imbalances experience anxiety and restlessness, particularly when the condition is untreated and fluctuating

Both conditions are diagnosable through blood tests and manageable with medication. If your restless senior dog is also excessively thirsty, urinating frequently, panting a lot, and developing a rounded belly, ask your vet to test for Cushing's disease.

9. Vision or hearing loss

Sensory decline is a natural part of aging, but it can contribute significantly to restlessness and anxiety. A dog who can't see well bumps into things, misjudges distances, and feels uncertain navigating familiar spaces, especially in dim lighting. A dog who can't hear well may startle easily, become more vigilant, and feel anxious about threats they can no longer monitor through sound.

Signs that sensory loss is contributing to restlessness:

• Restlessness that worsens in low-light conditions or at night (vision loss)
• Bumping into furniture or walls, especially on one side
• Startling easily when touched or approached from behind (hearing loss)
• Reluctance to go outside in the dark
• Increased clinginess, staying close to you for reassurance
• Cloudy or bluish eyes (nuclear sclerosis is normal aging; cataracts require evaluation)
• Not responding to verbal commands they once knew well

While you can't reverse age-related sensory decline, you can make adaptations that reduce your dog's anxiety. Night lights, consistent furniture placement, scent markers, textured floor changes near stairs, and vibration-based cues can all help a dog with failing senses feel more secure.

10. Medication side effects

If your senior dog is on medication and has recently started a new prescription or had a dosage change, the restlessness may be a side effect. Several common medications used in senior dogs can cause restlessness as a known side effect.

Medications that can cause restlessness in dogs:

• Prednisone and other corticosteroids: Increased thirst, hunger, and urination, plus a stimulant-like effect that can make dogs pant and pace
• Phenobarbital: Used for seizures. Can cause restlessness, increased appetite, and increased thirst, particularly when starting or adjusting the dose
• Thyroid supplements: If the dose is too high, it can cause hyperactivity, restlessness, and panting
• Some pain medications: Tramadol can occasionally cause restlessness or agitation in some dogs rather than sedation
• Certain antibiotics: Some dogs react to fluoroquinolone antibiotics with restlessness or agitation

If restlessness began within a few days of starting a new medication, call your vet. They may be able to adjust the dose or switch to an alternative. Never stop a prescribed medication without consulting your vet first, as abrupt discontinuation of some drugs can be dangerous.

When to see the vet

While mild, occasional restlessness may not be an emergency, you should schedule a veterinary appointment soon if your senior dog's restlessness is:

• New, persistent, or progressively worsening
• Disrupting their sleep (or yours) regularly
• Accompanied by any other symptoms: appetite changes, limping, coughing, vomiting, diarrhea, excessive thirst, weight changes, or behavioral changes
• Severe enough that your dog seems genuinely distressed

Seek emergency veterinary care if restlessness is accompanied by:

• A distended, hard, or painful abdomen (possible bloat)
• Labored breathing, blue or gray gums, or open-mouth breathing at rest
• Collapse, severe weakness, or inability to stand
• Unproductive retching (trying to vomit without producing anything)
• Pale or white gums (possible internal bleeding)
• Seizures or loss of consciousness

How your vet will diagnose the cause

Because restlessness is a nonspecific symptom with many possible causes, your vet will likely take a systematic approach:

• Detailed history: When the restlessness started, what times of day it's worst, what other changes you've noticed, current medications, and diet
• Physical examination: Checking for pain responses, joint mobility, heart and lung sounds, abdominal tenderness, dental health, and neurological function
• Blood work: A complete blood count and chemistry panel to evaluate organ function, check for infection, and screen for endocrine disorders like Cushing's disease, hypothyroidism, and diabetes
• Urinalysis: To check for urinary tract infections, kidney function, and glucose levels
• Imaging: X-rays of the chest and abdomen if heart disease, lung problems, or abdominal issues are suspected. Joint X-rays if arthritis is likely
• Cognitive assessment: A behavioral questionnaire to evaluate for canine cognitive dysfunction if other medical causes are ruled out

Bring notes and video. Write down when your dog is most restless, what seems to trigger it, and any other changes you've noticed. If possible, record a video of the restless behavior at home. Dogs often suppress their symptoms at the vet's office due to adrenaline, so your home observations are critical diagnostic tools.

How to help your restless senior dog at home

While you work with your vet to diagnose and treat the underlying cause, there are several things you can do at home to help your restless dog feel more comfortable.

Optimize their sleeping area

• Provide an orthopedic or memory foam bed that cushions aging joints. Beds with bolstered sides give dogs something to lean against, which many find comforting
• Place the bed in a quiet area away from household traffic, but not so isolated that they feel alone
• Keep the sleeping area at a comfortable temperature. Senior dogs are more sensitive to cold, which worsens joint pain
• Consider a night light if vision loss may be a factor. Being able to see their surroundings can reduce nighttime anxiety
• Use familiar-smelling blankets. Your scent provides reassurance

Establish a predictable routine

Senior dogs thrive on consistency. Feed at the same times, walk at the same times, and follow the same bedtime routine. Predictability reduces anxiety because your dog knows what to expect next. A pre-bedtime routine, such as a final potty break, a small snack, some gentle petting, and then settling into bed, can cue your dog's body and mind that it's time to rest.

Manage pain proactively

If your dog has been diagnosed with arthritis or another pain condition, make sure their pain management plan is keeping up with their needs. Pain tends to progress, and a medication dose that worked six months ago may no longer be sufficient. Signs that pain management needs adjustment include restlessness, stiffness after resting, reluctance to walk or climb, and changes in posture.

Provide appropriate exercise

Regular, gentle exercise helps manage pain, reduces anxiety, maintains mobility, and promotes better sleep. Short, frequent walks are better than long, exhausting ones. Swimming is excellent for dogs with joint pain because it provides exercise without impact. Mental stimulation through puzzle feeders, sniff walks, and gentle training also tires the brain in a healthy way.

Consider calming aids

Several products can help take the edge off anxiety-driven restlessness:

• Adaptil (DAP): A synthetic pheromone that mimics the calming pheromone mother dogs produce. Available as a diffuser, collar, or spray
• Calming supplements: L-theanine, melatonin, and casein-based products have some evidence for mild anxiety. Discuss with your vet before starting any supplement
• Compression garments: Products like the Thundershirt provide gentle, constant pressure that some dogs find soothing
• White noise or calming music: Can mask environmental sounds that trigger anxiety, especially at night

For severe restlessness or anxiety, your vet may prescribe medication such as trazodone, gabapentin, or selegiline. These are not a sign of failure; they are legitimate medical treatments that can significantly improve your dog's quality of life.

Support cognitive health

If cognitive dysfunction is suspected or diagnosed, the following can help:

• Feed a diet rich in antioxidants, omega-3 fatty acids, and medium-chain triglycerides (MCTs). Prescription diets like Purina Neurocare or Hill's b/d are formulated for cognitive support
• Maintain mental stimulation with puzzle toys, training sessions (even simple ones), and new sniff experiences
• Keep the environment simple and consistent. Don't rearrange furniture
• Use SAMe (S-adenosylmethionine) or other supplements your vet recommends for cognitive health
• Expose your dog to natural daylight during the day to help regulate their sleep-wake cycle

Frequently asked questions

Why is my old dog restless only at night?

Nighttime restlessness is especially common in senior dogs and usually points to a few key causes. Cognitive dysfunction disrupts the sleep-wake cycle, causing "sundowning" where confusion and anxiety worsen in the evening. Pain from arthritis tends to peak after a day of activity and then again after lying still for extended periods. Heart disease and respiratory conditions worsen when lying flat. And anxiety can spike at night when the house is quiet and dark. If the restlessness is exclusively nocturnal, mention this specifically to your vet, as it narrows the diagnostic possibilities.

Is my old dog restless because they're in pain?

Quite possibly. Pain is the most common medical cause of restlessness in senior dogs, and it's also one of the hardest for owners to recognize because dogs don't show pain the way humans do. They don't cry out or complain. Instead, they pace, pant, can't settle, lick excessively, change their posture, and avoid activities. If your vet suspects pain, they may recommend a "pain trial": a short course of pain medication to see if the restlessness improves. If it does, pain was a contributing factor.

Can I give my senior dog something to help them sleep?

Don't give your dog any over-the-counter sleep aids or human medications without consulting your vet first. Some human sleep aids contain ingredients that are toxic to dogs. Melatonin is sometimes used in dogs at appropriate doses, but even this should be discussed with your vet because it can interact with other medications and conditions. Your vet may prescribe trazodone, gabapentin, or other medications specifically for nighttime restlessness depending on the cause.

How do I know if it's dementia or something else?

Cognitive dysfunction is usually diagnosed after other medical causes have been ruled out. It rarely occurs in isolation. Look for the cluster of DISHAA signs: disorientation, interaction changes, sleep-wake disruption, house soiling, activity changes, and anxiety. If your dog only shows restlessness without these other cognitive signs, another cause is more likely. Your vet can help distinguish between cognitive decline and medical conditions that can mimic its symptoms, such as brain tumors, pain, or sensory loss.

My old dog is restless and panting. Is this serious?

Restlessness combined with panting in a senior dog always warrants veterinary attention. Panting is how dogs respond to pain, anxiety, respiratory difficulty, and heat, and in a senior dog who isn't overheated, it's usually a sign that something is wrong. The combination of restlessness and panting can indicate pain (especially abdominal or spinal), heart disease, respiratory problems, Cushing's disease, or severe anxiety. If the panting is accompanied by labored breathing, pale gums, a distended abdomen, or collapse, treat it as an emergency.

Watching your old dog pace and struggle to settle is exhausting and heartbreaking, for both of you. But restlessness is your dog's way of communicating that they need help, and the good news is that most causes are treatable or manageable once identified. Whether it's pain that needs better control, cognitive changes that need support, anxiety that needs soothing, or a medical condition that needs treatment, your veterinarian can help you get to the root of the problem. Your senior dog has spent a lifetime finding comfort in your presence. Now is the time to help them find comfort in their own body again.