Updated September 25, 2026. Fact-checked against veterinary sources; review by a licensed veterinarian is in progress. See our editorial policy.
Quick answer: Some pet problems can’t wait. Go to an emergency clinic immediately for breathing trouble, collapse, seizures, bloat signs, urinary blockage, poisoning, major trauma, or heatstroke. Many other problems, like vomiting with lethargy or a painful limp, should be seen the same day. Mild, short-lived signs in a bright, eating pet can often wait for a regular appointment.
Go to an emergency clinic now, don’t wait online, if your pet has
- Trouble breathing, or blue, gray, or very pale gums
- Collapse, seizures lasting more than 5 minutes, or repeated seizures
- A swollen belly with unproductive retching (possible bloat)
- Straining to urinate with little or no urine, especially male cats
- Suspected poisoning (also call ASPCA Animal Poison Control Center (888) 426-4435 or Pet Poison Helpline (855) 764-7661, fees apply)
- Major trauma, heavy bleeding, or a suspected broken bone
- Heatstroke signs
- Sudden paralysis or inability to walk
See a vet today if your pet has
- Vomiting or diarrhea with lethargy, or lasting more than a day
- Not eating for more than a day (sooner for cats, puppies, and kittens)
- A limp with swelling or refusal to bear weight
- A squinting, cloudy, or red eye
- Bite wounds or abscesses
- Blood in urine or stool
Book a regular appointment for
- Mild itching, lumps that haven’t changed, or gradual weight changes
- Increased thirst in an otherwise well pet (soon, not urgent)
- Routine questions and preventive care
When in doubt
Call your vet or an emergency clinic. It’s always better to ask.
Sources
- American Veterinary Medical Association (AVMA): Guidelines for the use of telehealth in veterinary practice
- AVMA: Veterinarian-client-patient relationship (VCPR) and state laws
- Merck Veterinary Manual: Emergency medicine in small animals
This article is for general education and is not a substitute for care from your own veterinarian. Learn about The Pet Vet and our editorial policy.