Sometimes it is obvious that a dog is unwell.

They may:

vomit repeatedly

collapse

struggle to breathe

or:

sustain an obvious injury.

But illness does not always begin dramatically.

Often the first clue is simply:

“He's not quite himself.”

Your dog may sleep more.

Walk more slowly.

Leave part of breakfast.

Drink more than usual.

Stop jumping onto the sofa.

Ask to go outside more often.

Become unusually clingy.

Or quietly withdraw.

Merck's current routine-care guidance lists changes in appetite, activity, vomiting or diarrhoea, urination, coughing or sneezing, discharge, skin and coat condition, and mobility among everyday signs that can indicate illness.

That leads to one of the most useful principles in pet health:

Know your dog's normal.

Because:

normal for your dog

is the reference point against which changes become meaningful.

One symptom rarely tells you the diagnosis

Imagine three dogs are all:

less active than usual.

One has:

arthritis pain.

Another has:

gastrointestinal illness.

Another has:

a respiratory infection.

The behaviour is similar.

The cause is not.

So this guide is not designed to help you:

diagnose your dog from a checklist.

It is designed to help you recognise:

meaningful changes + combinations of symptoms + warning signs + urgency.

That distinction is important.

1. Changes in appetite

A sudden change in eating can be one of the earliest signs that something is wrong.

Watch for:

eating less

refusing food

taking much longer to eat

dropping food

showing interest but struggling to chew

or:

suddenly becoming much hungrier than normal.

Appetite changes can occur with:

pain

dental disease

nausea

gastrointestinal disease

infection

hormonal disorders

and many other conditions.

AAHA notes that decreased or increased appetite can be associated with pain, illness, dental discomfort or hormonal problems.

The important questions are:

How much has appetite changed?

How long has it lasted?

What other symptoms are present?

When appetite loss matters more

Be more concerned if appetite loss occurs with:

vomiting

diarrhoea

lethargy

pain

weight loss

difficulty swallowing

or:

changes in drinking.

Merck lists failure to eat or drink for 24 hours among signs requiring immediate veterinary attention, though age, health and accompanying signs can justify acting much sooner.

For puppies, toy breeds, senior dogs and dogs with underlying disease:

lower the threshold for contacting a veterinarian.

2. Drinking more or less than usual

Water intake is valuable health information.

Some dogs normally drink more after:

exercise

hot weather

or:

eating dry food.

But sustained changes can matter.

Watch for:

emptying the bowl much faster

seeking additional water

drinking from unusual places

or conversely:

barely drinking.

AAHA recommends veterinary discussion when pets begin drinking substantially more than usual or urinating more often.

Increased thirst can occur with conditions including:

kidney disease

diabetes

hormonal disease

and other illnesses.

Reduced drinking can contribute to:

dehydration

particularly when combined with:

vomiting or diarrhoea.

3. Urinating more, less or differently

Changes in urination can be clinically important.

Watch for:

asking to go out more frequently

larger urine volumes

small frequent amounts

straining

urinating indoors unexpectedly

blood in urine

apparent pain

or:

producing little or no urine.

Merck recommends prompt veterinary attention for blood or discomfort during urination and immediate care when an animal strains but cannot urinate.

Complete inability to urinate is:

AN EMERGENCY

because urinary obstruction can become life-threatening.

4. Vomiting

One isolated episode can occur without serious illness.

But repeated vomiting deserves closer attention.

Concerning patterns include:

multiple episodes

inability to keep water down

blood

abdominal pain

lethargy

or:

suspected foreign-body or toxin exposure.

AAHA's 2026 vomiting guidance stresses that the number of episodes alone does not reliably indicate how serious the cause is; the dog's overall condition and accompanying signs matter.

For a full symptom-specific guide, see:

Dog Vomiting: Common Causes and When to Contact a Vet — Article 31.

5. Diarrhoea or changes in stool

Changes in stool can include:

soft stool

watery diarrhoea

blood

mucus

black/tarry stool

straining

or:

significant changes in frequency.

Mild diarrhoea may sometimes be short-lived.

But diarrhoea becomes more concerning when it is:

persistent

bloody

black/tarry

or occurs with:

vomiting

appetite loss

weakness

pain

or:

dehydration.

Merck lists bloody or uncontrollable diarrhoea and thick black stool among signs needing immediate veterinary attention.

For more detail, see:

Dog Diarrhoea: Common Causes and Warning Signs — Article 33.

6. Lethargy or reduced activity

Dogs have naturally:

active days

and:

quiet days.

But a meaningful drop in energy can signal illness.

Examples include:

sleeping far more than usual

not greeting you

avoiding walks

stopping play

moving reluctantly

or:

appearing unusually weak.

Merck identifies reduced activity as a potential sign of illness and recommends veterinary evaluation when sleeping more than usual is accompanied by unwillingness to play.

The key distinction is:

tired

versus:

abnormally lethargic.

What does lethargy actually mean?

Lethargy means a meaningful reduction in:

energy

alertness

or:

normal activity.

It is not the same as:

“My dog slept after a long walk.”

It is more like:

“My normally energetic dog barely wants to move today.”

Lethargy can occur with:

infection

pain

gastrointestinal disease

anaemia

heart disease

metabolic disease

toxin exposure

and many other conditions.

It is therefore:

useful information

but not:

a diagnosis.

7. Behaviour changes

Sometimes behaviour changes before obvious physical symptoms appear.

Watch for:

hiding

withdrawal

unusual clinginess

restlessness

confusion

irritability

unexpected aggression

vocalisation

or:

loss of interest in familiar activities.

AAHA identifies sudden changes such as aggression, excessive fearfulness or unusual withdrawal as possible signs of pain or distress.

A sudden behaviour change should not automatically be interpreted as:

“bad behaviour.”

There may be:

pain

fear

neurological disease

sensory changes

or other medical causes.

8. Pain

Dogs cannot tell us:

“My back hurts.”

Pain can instead appear as:

limping

stiffness

reluctance to move

difficulty getting up

not wanting to jump

panting at rest

restlessness

trembling

guarding part of the body

changes in posture

or:

changes in behaviour.

Cornell recommends documenting pain behaviours with photos, videos or notes because dogs may behave differently in a clinic than at home.

AAHA similarly notes that appetite changes and reduced movement can be signs of pain.

9. Limping, stiffness or difficulty moving

Mobility changes deserve attention.

Look for:

limping

not bearing weight

stiffness after rest

difficulty rising

reluctance to use stairs

refusal to jump

or:

changes in gait.

Possible causes include:

injury

joint disease

soft-tissue injury

neurological problems

or other painful conditions.

AAHA recommends veterinary assessment when these mobility changes appear, while Merck identifies sudden severe lameness as requiring immediate attention and persistent lameness as needing prompt veterinary evaluation.

10. Coughing

An occasional cough does not automatically mean serious disease.

Persistent coughing deserves attention.

Potential causes can involve:

respiratory infection

airway irritation

heart disease

foreign material

or other conditions.

AAHA advises contacting a veterinarian when coughing persists or occurs alongside:

difficulty breathing

lethargy

or:

discharge.

Cornell similarly recommends prompt veterinary contact when respiratory symptoms include coughing, sneezing or laboured breathing.

11. Sneezing or nasal discharge

Dogs sometimes sneeze normally.

Repeated sneezing or new nasal discharge can occur with:

infection

irritation

allergy

foreign material

and other conditions.

Watch for:

persistent sneezing

thick discharge

blood

one-sided discharge

or:

breathing difficulty.

Merck lists ongoing sneezing or coughing and discharge from body openings among signs deserving veterinary attention.

12. Breathing changes

This is one of the most important categories.

Watch for:

laboured breathing

rapid breathing at rest

gasping

wheezing

noisy breathing

excessive panting without an obvious reason

or:

blue, grey or purple gums.

AAHA identifies respiratory distress as a pet emergency and notes that abnormal gum colour can indicate inadequate oxygenation or circulation.

DIFFICULTY BREATHING = URGENT

Do not wait to see whether it improves overnight.

13. Changes in gum colour

A healthy dog's gums are often:

pink

though normal pigmentation can vary substantially between dogs.

What matters is knowing:

your dog's normal appearance.

Concerning changes can include:

very pale

white

blue

grey

or:

purple.

AAHA notes that pale or discoloured gums can indicate problems such as:

shock

anaemia

poor circulation

or:

lack of adequate oxygenation.

Merck similarly lists bluish or white gums/tongue as an immediate-care sign.

14. Unexplained weight loss

Weight loss deserves attention even if your dog seems:

otherwise normal.

Possible causes range from:

reduced calorie intake

to:

gastrointestinal disease

parasites

metabolic disorders

dental disease

chronic illness

or:

cancer.

AAHA recommends evaluation of unexplained weight loss or gain and notes that weight loss can occur even when appetite appears increased.

This is why:

regular weight tracking can reveal a problem before it becomes obvious visually.

15. Unexplained weight gain

Rapid or unexpected weight gain can also be meaningful.

Possible explanations include:

overfeeding

reduced activity

fluid accumulation

hormonal disease

or other conditions.

A trend matters more than:

one scale reading.

For 1KAHU:

weight should always be longitudinal.

16. Skin and coat changes

Watch for:

persistent itching

scratching

licking

chewing

hair loss

redness

rashes

sores

scabs

or:

recurrent skin infections.

Merck lists hair loss, excessive itching and red skin among signs of illness, while AAHA's 2026 allergy guidance notes that allergies can involve itchy skin, recurrent ear problems and sometimes gastrointestinal signs.

Not every itch means:

allergy.

Parasites, infection, pain and other conditions can also be involved.

17. Ear changes

Signs of ear trouble can include:

head shaking

scratching

redness

odour

discharge

pain

or:

holding the head unusually.

Merck recommends veterinary evaluation for persistent head shaking and ear discharge.

Recurrent ear problems may need investigation rather than repeated symptomatic treatment.

18. Eye changes

Eye problems can progress quickly.

Watch for:

squinting

redness

cloudiness

excessive tearing

discharge

swelling

visible injury

or:

sudden vision problems.

Merck recommends prompt evaluation for cloudy eyes, squinting or apparent inability to see, while AAHA considers visible eye injury a potential emergency because delay can threaten vision.

19. Bad breath or difficulty eating

Bad breath is not always:

“just dog breath.”

Dental or oral problems may cause:

bad breath

drooling

difficulty chewing

dropping food

pawing at the mouth

bleeding gums

or:

reduced appetite.

AAHA's symptom guidance recommends monitoring the mouth and teeth because oral changes can be important health clues.

20. Lumps or bumps

Many lumps are:

benign.

Some are not.

AAHA's 2026 cancer guidance highlights new or changing lumps, unexplained weight loss and behaviour changes as signs worth discussing with a veterinarian, particularly as pets age.

Record:

where the lump is

approximate size

when you first noticed it

and:

whether it changes.

Do not attempt to diagnose a lump by:

appearance or feel alone.

21. Changes in stool or urination habits

A subtle shift in:

frequency

location

effort

or:

appearance

can be clinically useful.

For example:

more frequent urination + increased thirst

is different from:

straining to urinate + little urine.

Likewise:

one soft stool

is different from:

recurrent diarrhoea + weight loss.

This is where connected symptom data becomes more useful than individual notes.

22. Trembling or shaking

Dogs may shake because of:

cold

fear

excitement

or:

stress.

But trembling can also occur with:

pain

weakness

toxins

neurological problems

or other illness.

The context matters.

Sudden trembling alongside:

weakness

collapse

vomiting

altered behaviour

or:

suspected toxin exposure

needs more urgent assessment.

23. Changes in sleep

Sleeping more than usual can occur with:

fatigue

pain

illness

or:

age-related changes.

Merck lists sleeping more than usual combined with unwillingness to play among signs that should prompt veterinary contact.

What matters is whether the change is:

new

and:

meaningful for your dog.

24. Confusion or disorientation

Sudden:

confusion

staring

circling

getting stuck

not recognising familiar surroundings

or other neurological changes deserve attention.

AAHA identifies unresponsiveness or altered mental state as emergency signs, while Merck includes staggering and walking problems among immediate-care indications.

25. Seizures

A seizure may involve:

collapse

stiffening

paddling

tremors

drooling

or:

loss of consciousness.

AAHA advises contacting a veterinarian immediately after a seizure and seeking emergency care for serious neurological changes.

Do not put your hands near your dog's mouth during a seizure.

Focus on:

preventing injury + timing the episode + seeking veterinary advice.

26. Sudden weakness or paralysis

Sudden inability to:

stand

walk

or:

use one or more limbs

is an emergency.

AAHA specifically identifies paralysis and extreme weakness as conditions requiring immediate intervention.

Cornell similarly lists sudden collapse or loss of limb function among emergency presentations.

27. Abdominal swelling or bloating

Sudden abdominal enlargement can be serious.

Particularly concerning combinations include:

swollen abdomen

restlessness

weakness

pale gums

repeated retching

or:

trying to vomit without producing much.

AAHA identifies abdominal swelling as an emergency because possible causes include gastric dilatation-volvulus, internal bleeding and other serious conditions.

SUDDEN BLOATING + RETCHING = EMERGENCY

Do not wait for the abdomen to become dramatically enlarged.

28. Bleeding or trauma

Known trauma deserves caution even when the dog initially appears:

fine.

AAHA warns that animals can have:

internal injury

or:

shock

despite appearing relatively normal immediately after an accident.

Examples include:

vehicle collision

significant fall

bite wound

deep wound

major bleeding.

Seek prompt veterinary assessment.

29. Fever or feeling unusually hot

A dog that feels warm is not enough to diagnose:

fever.

Body temperature needs to be measured appropriately.

But fever may accompany:

infection

inflammation

and other illness.

Very high body temperature can be dangerous.

Merck lists body temperature above 40.5°C / 105°F among immediate-care signs.

Heatstroke is also a veterinary emergency.

30. “My dog just seems different”

Do not dismiss this.

Guardians often know their dogs extremely well.

A subtle shift such as:

not following you into the kitchen

taking longer to get up

not asking for the usual walk

sleeping somewhere unusual

or:

avoiding interaction

may be worth recording.

It does not prove illness.

But:

small changes can become important when they form a pattern.

When should I contact a veterinarian?

There is no perfect universal timer.

The right decision depends on:

severity + duration + age + medical history + number of symptoms + rate of deterioration.

As a practical framework:

Contact a veterinarian when:

• appetite is meaningfully reduced;
• drinking or urination changes;
• vomiting or diarrhoea persists or recurs;
• coughing or sneezing persists;
• your dog becomes unusually quiet or withdrawn;
• unexplained weight change occurs;
• limping persists;
• itching or skin changes continue;
• eye or ear symptoms appear;
• a lump is new or changing;
• behaviour changes suddenly;
• you are seeing a recurring pattern.

Merck's general guidance suggests veterinary assessment when many common illness signs continue beyond a day or two, while some signs require much faster action.

When is it an emergency?

Seek urgent veterinary care if your dog has:

DIFFICULTY BREATHING

Including gasping, laboured breathing, severe wheezing or abnormal gum colour.

COLLAPSE OR UNRESPONSIVENESS

These can occur with shock, poisoning, serious illness or neurological disease.

SEIZURES

Especially a first seizure, repeated seizure or failure to recover normally.

SUDDEN PARALYSIS OR EXTREME WEAKNESS

Requires immediate assessment.

BLUE, GREY, WHITE OR VERY PALE GUMS

Can indicate serious respiratory or circulatory compromise.

SUDDEN ABDOMINAL SWELLING

Especially with retching, weakness or pale gums.

INABILITY TO URINATE

Urinary obstruction is an emergency.

SIGNIFICANT TRAUMA OR BLEEDING

Even when the dog initially appears relatively normal.

SUSPECTED POISONING

Do not wait for obvious symptoms.

RAPID DETERIORATION

If your dog's condition is clearly worsening over minutes or hours:

seek veterinary care.

Puppies need a lower threshold for concern

Puppies can deteriorate more rapidly than healthy adult dogs.

Reasons include:

smaller body reserves

greater dehydration risk

and:

susceptibility to infectious disease.

Young or incompletely vaccinated dogs are at greater risk from diseases such as canine distemper, which occurs worldwide and can cause systemic, respiratory, gastrointestinal and neurological signs.

Contact a veterinarian promptly if a puppy develops:

vomiting

diarrhoea

marked lethargy

appetite loss

coughing

nasal/eye discharge

or:

neurological signs.

Senior dogs also need closer monitoring

Dogs become more likely to develop:

chronic disease

as they age.

Merck recommends more frequent veterinary examination for senior dogs, while AAHA also notes that senior pets and animals with chronic health issues generally need more frequent checkups.

New signs such as:

weight loss

increased thirst

difficulty rising

cognitive changes

or:

reduced activity

should not automatically be dismissed as:

“just getting older.”

Ageing itself is not a diagnosis.

Dogs with chronic conditions need individual thresholds

A dog with:

diabetes

heart disease

kidney disease

epilepsy

Addison's disease

or another established condition may need different escalation rules.

For example:

reduced appetite

may be relatively minor in one dog and clinically important in another.

1KAHU should therefore eventually support:

condition-specific monitoring instructions from the treating veterinarian.

What should I monitor at home?

One of the most useful ways to recognise illness is to track a few everyday baselines.

APPETITE

Normal amount? Eating speed? Treat interest?

WATER

Normal amount? Noticeably increased or decreased?

ACTIVITY

Normal walks? Playing? Getting up easily?

BEHAVIOUR

Normal interaction? Hiding? Restless? Clingy?

STOOL

Normal consistency? Frequency? Blood?

URINATION

Normal amount? Frequency? Straining?

WEIGHT

Stable? Gradually changing?

BREATHING

Normal at rest? Coughing? Panting unexpectedly?

MOBILITY

Normal gait? Stiff? Limping?

SKIN / COAT

Normal? Itching? Hair loss?

EYES / EARS / NOSE

Any new discharge, redness or discomfort?

This becomes:

My Dog's Normal

rather than:

a random list of measurements.

Establishing a baseline matters

AAHA specifically highlights baseline establishment as one benefit of routine veterinary care: when you and the veterinary team know what is normal for an individual pet, meaningful changes can be identified more readily.

For 1KAHU, this should become a fundamental product concept.

Not:

“Is 32 kg healthy?”

Instead:

BUDDY — WEIGHT TREND

31.1 kg 31.4 kg 31.8 kg 33.2 kg

The question becomes:

“What changed?”

Take photos and videos when useful

Some symptoms are difficult to reproduce in the veterinary clinic.

Examples include:

limping

coughing

trembling

abnormal breathing

episodes of weakness

unusual behaviour.

Cornell specifically recommends photographs, videos and written notes when monitoring pain because behaviour can change in the clinic environment.

The same principle applies more broadly.

A short video can sometimes communicate more than:

“He was walking strangely earlier.”

What should I tell the veterinarian?

A useful symptom history includes:

What changed?

When did it start?

Was the change sudden or gradual?

Is it constant or intermittent?

Is it getting better or worse?

Any other symptoms?

Any new food?

Any new medication?

Any possible toxin exposure?

Any injury?

Any recent travel or boarding?

Any changes in appetite, drinking, stool or urination?

Any weight change?

Any videos or photos?

That information can help the veterinary team:

prioritise + investigate + compare over time.

Do not diagnose from one sign

Consider:

DOG A

Drinking more Urinating more Weight stable

DOG B

Drinking more Urinating more Losing weight Eating more

DOG C

Drinking more Vomiting Not eating Lethargic

All three share:

increased thirst.

They do not necessarily share:

the same disease.

That is why a symptom checker should not behave like:

symptom → diagnosis.

It should behave like:

symptom → context → risk → appropriate next action.

Common misconceptions

“If my dog still wags their tail, they can't be seriously ill.”

False.

Dogs can remain responsive or affectionate despite significant illness.

“A wet nose means my dog is healthy.”

Nose moisture is not a reliable standalone health test.

“If my dog eats, everything is fine.”

Normal appetite is useful information, but it does not rule out illness.

“Dogs always cry when they're in pain.”

No.

Pain may present as subtle changes in posture, movement, appetite or behaviour.

“He's limping but still using the leg, so I don't need a vet.”

Mild lameness may not be an emergency, but persistent or worsening lameness deserves veterinary evaluation.

“My old dog slowing down is just ageing.”

Not necessarily.

Pain and chronic disease are common in older dogs and may initially appear as reduced activity.

“I'll wait until several symptoms appear.”

Not always appropriate.

Some single signs—such as breathing difficulty, seizure, inability to urinate or collapse—can themselves be emergencies.

“AI can tell me exactly what's wrong.”

No.

AI can help organise observations and highlight risk patterns, but diagnosis requires veterinary judgement and sometimes physical examination and testing. AAHA specifically cautions against relying on AI to diagnose a dog.

Key Facts

A change from your dog's normal behaviour or routine can be an important early sign of illness.

Common illness signs include appetite changes, reduced activity, vomiting, diarrhoea, urination changes, coughing, discharge, skin changes and mobility problems.

Persistent coughing, sneezing, limping, discharge, weight change or behaviour change warrants veterinary attention.

Unexplained weight loss or gain can be associated with significant disease.

Pain may appear as reduced appetite, limping, stiffness, restlessness or behaviour change rather than crying.

Difficulty breathing is an emergency.

Collapse, unresponsiveness, seizures, severe weakness or paralysis require urgent veterinary assessment.

Blue, grey, white or very pale gums can indicate serious respiratory or circulatory problems.

Sudden abdominal swelling, particularly with retching or weakness, is an emergency.

Inability to urinate is an emergency.

Regular preventive examinations help establish an individual baseline and identify disease earlier.

When to Contact a Veterinarian

Contact a veterinarian if:

• appetite changes meaningfully;
• drinking or urination changes;
• vomiting or diarrhoea persists or recurs;
• coughing or sneezing continues;
• your dog becomes unusually quiet, withdrawn or irritable;
• weight changes without explanation;
• limping persists;
• skin or ear problems continue;
• an eye becomes red, cloudy or painful;
• a lump appears or changes;
• symptoms recur over time;
• something simply seems consistently different from your dog's normal.

Seek urgent veterinary care if:

• your dog has difficulty breathing;
• gums are blue, grey, white or very pale;
• your dog collapses or becomes unresponsive;
• your dog has a seizure;
• sudden paralysis or extreme weakness occurs;
• the abdomen becomes suddenly swollen or painful;
• your dog repeatedly retches without producing much;
• your dog cannot urinate;
• there is severe bleeding or significant trauma;
• poisoning is suspected;
• your dog's condition is deteriorating rapidly.

Frequently Asked Questions

How can I tell if my dog is sick?

Look for changes from your dog's normal appetite, drinking, activity, behaviour, stool, urination, breathing, mobility, weight, skin, coat, eyes or ears. Persistent or significant changes deserve veterinary attention.

What are the first signs that a dog may be unwell?

Early signs can include reduced appetite, lower energy, behaviour changes, increased thirst, changes in urination, vomiting, diarrhoea, coughing or reduced willingness to exercise.

Why is my dog suddenly quiet?

Dogs may become quieter because of tiredness, stress, pain or illness. A new, sustained drop in normal activity should be considered alongside appetite, drinking, mobility and other symptoms.

Why is my dog sleeping more than usual?

Sleep can vary naturally, but a sudden increase accompanied by unwillingness to play or interact can indicate illness and warrants veterinary advice if it persists.

My dog is eating but seems unwell. Can they still be sick?

Yes. Normal appetite does not rule out illness. Pain, heart disease, skin disease, early infection and many other conditions may occur without appetite loss.

My dog isn't eating. When should I contact a vet?

Contact a veterinarian sooner if appetite loss is accompanied by vomiting, diarrhoea, weakness, pain or other symptoms. Merck lists complete failure to eat or drink for 24 hours as an immediate-care sign, but many dogs warrant assessment earlier depending on context.

Why is my dog drinking more water?

Increased thirst may occur with environmental factors but can also be associated with kidney disease, diabetes, hormonal disease and other conditions. Persistent unexplained changes warrant veterinary assessment.

Why is my dog urinating more often?

Possible explanations range from increased water intake to urinary or systemic disease. Blood, pain, straining or inability to urinate needs prompt or emergency assessment.

Is lethargy always serious?

No, but significant lethargy is nonspecific and can accompany many illnesses. Extreme lethargy or collapse is an emergency.

How do I know if my dog is in pain?

Possible signs include limping, stiffness, reluctance to move, appetite changes, panting, restlessness, altered posture and changes in behaviour.

When is a limp an emergency?

Sudden severe lameness, inability to use a limb or lameness following major trauma warrants urgent assessment. Mild lameness that persists should also be evaluated.

Is coughing serious in dogs?

Persistent coughing should be assessed, particularly when accompanied by lethargy, nasal discharge or breathing difficulty.

How do I know if my dog is struggling to breathe?

Signs can include laboured or noisy breathing, gasping, excessive panting at rest and blue, grey or purple gums. These require urgent veterinary care.

What gum colour is concerning?

Blue, grey, white or markedly pale gums can indicate poor oxygenation, circulation problems, anaemia or shock and require urgent assessment.

Is sudden weight loss serious?

Unexplained weight loss warrants veterinary evaluation, particularly when accompanied by appetite, drinking, stool or behaviour changes.

Should I worry about a new lump?

Most lumps cannot be reliably identified from appearance or touch alone. New or changing lumps should be discussed with your veterinarian.

When is vomiting an emergency?

Repeated vomiting, inability to retain fluids, blood, significant weakness, abdominal pain, bloating, suspected foreign-body ingestion or toxin exposure can require urgent care.

When is diarrhoea an emergency?

Severe or persistent diarrhoea—especially with blood, vomiting, weakness or dehydration—can require urgent care.

Can I wait until tomorrow if my dog seems sick?

Sometimes mild symptoms can be monitored, but difficulty breathing, collapse, seizures, paralysis, inability to urinate, significant trauma, severe bleeding, poisoning or sudden abdominal swelling should not wait.

Can AI tell me whether my dog needs a vet?

AI can help organise symptoms, identify warning signs and explain when veterinary care may be appropriate, but it should not diagnose disease or replace a veterinarian.

One Guardian. For All Pets.

1KAHU is a technology platform and is not a provider of veterinary, healthcare or referral services. Professional profiles, credentials and service information should be independently verified where possible, but inclusion on the platform does not replace a guardian's responsibility to confirm that a veterinarian currently treats their species and is appropriate for the individual animal and clinical situation.