Dog Symptom Checker
This is NOT a diagnosis tool and is NOT a substitute for veterinary advice.
This tool helps you decide how urgently your dog may need veterinary care. When in doubt, always call your vet.
Emergency: ASPCA Poison Control (888) 426-4435 · Pet Poison Helpline (855) 764-7661
Dog Symptom Checker
Answer a few quick questions about your dog's symptoms to find out whether you should call the vet now, today, or just monitor at home.
Tell us about your dog (age and size)
Describe the symptoms you're seeing
Get a triage recommendation with next steps
Recognizing emergencies in dogs
Knowing the difference between a minor issue and a life-threatening emergency can save your dog's life. The following symptoms always warrant immediate emergency veterinary care — do not wait, do not call ahead, just go.
| Emergency symptom | Why it's urgent | What to do |
|---|---|---|
| Seizures / convulsions | Brain emergency — can worsen rapidly | Keep dog safe from objects, go to ER |
| Bloated abdomen + restlessness | Possible GDV (gastric torsion) — fatal without surgery | Emergency vet immediately |
| Labored / difficulty breathing | Airway obstruction, fluid in lungs, or heart failure | Emergency vet immediately |
| Uncontrolled bleeding | Risk of shock and blood loss | Apply pressure, go to ER |
| Pale, white, or blue gums | Shock, internal bleeding, or oxygen deprivation | Emergency vet immediately |
| Collapse / unable to stand | Multiple possible causes, all serious | Emergency vet immediately |
| Suspected toxin ingestion | Many toxins act fast — minutes matter | Call poison control, then ER |
| Unable to urinate 24+ hours | Urinary blockage — can be fatal | Emergency vet today |
Sources: AVMA Emergency Guidelines; ASPCA Animal Poison Control Center; Merck Veterinary Manual
Triage levels explained
Call vet NOW / go to ER
Life-threatening symptoms that require immediate veterinary intervention. Do not wait.
Call your vet today
Symptoms that need professional attention within hours. Do not wait until tomorrow.
Watch closely at home
Mild symptoms that may resolve on their own. Call if they persist or worsen.
Probably nothing to worry about
Common, benign occurrences. Note the date and mention at next vet visit if recurring.
Triage categories are based on general veterinary emergency guidelines. Individual cases vary — this tool provides guidance, not diagnosis.
Why puppies and seniors need faster action
Puppies under one year have immature immune systems and tiny body reserves. A bout of vomiting or diarrhea that a healthy adult can ride out for 24 hours may dehydrate a puppy dangerously within hours. Senior dogs over seven years often have reduced organ function and underlying conditions that make even mild symptoms more significant. For both age groups, the recommendation is always to call your vet sooner rather than later.
The 5-second gum check
Your dog's gums are a quick window into their circulatory health. Lift the lip and look at the gum color above the teeth:
- Pink and moist — normal, healthy circulation
- Pale or white — possible shock, anemia, or internal bleeding (emergency)
- Blue or purple — oxygen deprivation (emergency)
- Bright red — possible heatstroke, toxin exposure, or high blood pressure
- Yellow — possible liver issues (call vet today)
Press the gum with your finger and release. The color should return within 2 seconds (capillary refill time). If it takes longer, this suggests poor circulation and warrants a vet call.
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Dog symptom FAQs
1Is this symptom checker a substitute for going to the vet?
No. This tool helps you assess urgency — whether to call the vet right now, today, or monitor at home. It is a triage guide, not a diagnosis. If you are ever in doubt about your dog's health, call your veterinarian. No online tool can replace a hands-on veterinary examination.
2How do I know if my dog's symptoms are an emergency?
Emergency signs include seizures, difficulty breathing, uncontrolled bleeding, pale or white gums, bloating with restlessness, collapse, inability to urinate for 24+ hours, and suspected toxin ingestion. If you see any of these, go to the nearest emergency vet immediately — do not wait.
3My dog is vomiting — when should I worry?
A single episode of vomiting in an otherwise healthy adult dog is usually not an emergency. Monitor for 12–24 hours. Call your vet if: vomiting persists beyond 24 hours, vomit contains blood, your dog becomes lethargic or refuses water, your dog is a puppy or senior, or you suspect your dog ingested something toxic. Puppies can dehydrate quickly — err on the side of calling sooner.
4My dog has diarrhea — is it serious?
Mild diarrhea (soft stool, dog otherwise acting normal) that lasts 1–2 days is often not serious and may resolve with a bland diet. Call your vet if: diarrhea is bloody or black/tarry, it lasts more than 48 hours, your dog is lethargic or not eating, your dog shows signs of dehydration (dry gums, skin tenting), or your dog is a puppy, senior, or has pre-existing health conditions.
5My dog is limping — should I go to the vet?
Mild limping without swelling that just started can often be monitored for 24–48 hours with rest. Call your vet today if: there is visible swelling, the limping is severe (non-weight-bearing), it appeared suddenly after an injury, it persists beyond 48 hours, or your dog is in obvious pain (whimpering, not eating). Go to the ER if your dog cannot stand or walk at all.
6How do I check if my dog is dehydrated?
Gently pinch the skin on the back of your dog's neck and release. In a well-hydrated dog, the skin snaps back immediately. If it stays tented or returns slowly, your dog may be dehydrated. Also check the gums — they should be moist and pink. Dry, sticky, or pale gums are warning signs. If you suspect dehydration, offer fresh water and call your vet.
7Are symptoms more dangerous in puppies and senior dogs?
Yes. Puppies have immature immune systems, smaller body reserves, and can dehydrate very quickly. A symptom that might be 'monitor at home' for a healthy adult could be 'call the vet today' for a puppy. Senior dogs similarly have less physiological reserve and are more likely to have underlying conditions that complicate symptoms. When in doubt with puppies or seniors, always call your vet sooner rather than later.
8What should I tell the vet when I call?
Be ready with: (1) your dog's age, breed, weight, and any known health conditions or medications; (2) what the symptoms are and exactly when they started; (3) whether symptoms are getting better, worse, or staying the same; (4) anything your dog may have eaten or been exposed to; (5) whether your dog is eating, drinking, and urinating normally. The more specific you are, the better your vet can advise you over the phone.