As a pet owner, you’ve probably asked yourself, “Should I call the vet, or should I wait and see if my pet gets better?” It’s one of the most common questions veterinarians hear, and the answer isn’t always straightforward.

Some symptoms are mild and may resolve on their own, while others can become life-threatening if left untreated. The challenge is knowing the difference.

In this guide, we’ll cover the warning signs that should never be ignored, explain when it’s appropriate to schedule a veterinary appointment, and help you recognize when your pet needs immediate emergency care. If you’re ever uncertain, it’s always safest to have your pet evaluated sooner rather than later.

Trust Your Instincts. You Know Your Pet Best

No one knows your dog or cat better than you do.

Many illnesses don’t begin with dramatic symptoms. Instead, they often start with subtle changes like sleeping more than usual, hiding, eating less, drinking more water, or simply acting differently than normal.

If your pet “just doesn’t seem like themselves,” don’t ignore that feeling. Early diagnosis often leads to simpler treatments, lower costs, and better outcomes.

Signs Your Pet Should See a Veterinarian Soon

These symptoms aren’t always emergencies, but they deserve veterinary attention, especially if they persist or worsen.

Vomiting or Diarrhea

An upset stomach happens occasionally, but repeated vomiting or diarrhea can indicate something much more serious.

Schedule an appointment if your pet:

Vomits more than once
Has diarrhea lasting longer than 24 hours
Has blood in their vomit or stool
Becomes lethargic or stops eating

Possible causes range from dietary indiscretion to parasites, infections, pancreatitis, or gastrointestinal disease.

Related reading: Ultrasound for Pets: What It Shows and When It’s Needed if your veterinarian recommends advanced imaging for persistent digestive issues.

Loss of Appetite

A pet that skips one meal may not be cause for concern. However, if your dog or cat refuses food for an extended period or loses interest in treats, water, or normal activities, it could signal an underlying medical condition.

Cats, in particular, should never go long without eating because prolonged appetite loss can lead to additional health complications.

For pets with ongoing digestive issues, unexplained weight loss, or chronic illness, COVE’s Internal Medicine specialists use advanced diagnostics to determine the underlying cause.

Limping or Difficulty Walking

A sudden limp isn’t always an emergency, but it should never be ignored.

Your pet may have:

A paw injury
Arthritis
A sprain
A torn cranial cruciate ligament (ACL/CCL)
A fracture

If your pet refuses to bear weight, cries out in pain, or the limping doesn’t improve within 24-48 hours, schedule an evaluation.

Persistent Coughing or Sneezing

Occasional coughing isn’t uncommon, but persistent coughing, nasal discharge, or difficulty breathing can indicate respiratory disease, heart disease, infections, or other medical conditions.

If symptoms continue for more than a day or two—or worsen—your pet should be examined.

Eye Problems

Eye problems can progress quickly and should never be ignored.

Watch for:

Redness
Squinting
Cloudiness
Swelling
Excessive tearing
Pawing at the eye

Early treatment often helps preserve vision.

When Does It Become an Emergency?

Some symptoms require immediate evaluation at an emergency veterinary hospital.

Seek emergency care right away if your pet has:

Difficulty breathing
Active seizures
Collapse or loss of consciousness
Severe bleeding
A bloated abdomen with unsuccessful retching
Suspected toxin ingestion
Been hit by a vehicle
Trouble urinating or cannot urinate
Sudden blindness or severe eye injury

These conditions can worsen rapidly and should never wait until the next day.

If you’re unsure whether your pet’s condition qualifies as an emergency, read our guides:

Can This Wait Until Tomorrow?

One of the most common questions pet owners ask is whether they should wait until morning or seek care immediately.

Symptom	Schedule a Vet Visit	Emergency Vet
Mild limp	✅
Vomited once but acting normally	✅
Mild skin irritation	✅
Red or irritated eye	✅
Persistent vomiting		✅
Difficulty breathing		✅
Seizures		✅
Hit by a car		✅
Bloated abdomen		✅
Unable to urinate		✅

When in doubt, it’s always okay to call. A quick conversation with a veterinary professional can help determine the best course of action.

Why Early Veterinary Care Matters

Pets are remarkably good at hiding pain.

By the time obvious symptoms appear, an illness may already be progressing. Seeking veterinary care early often means:

Earlier diagnosis
More treatment options
Better outcomes
Less discomfort for your pet
Potentially lower treatment costs

Waiting too long can allow conditions to become more serious, requiring more extensive care.

How COVE Pet Care Can Help

Whether your pet needs a same-day evaluation, advanced diagnostics, emergency treatment, or specialty care, COVE Pet Care offers comprehensive services under one roof.

Our experienced team provides:

24/7 Emergency Care
Urgent Care
Internal Medicine
Surgery
Orthopedic Surgery
Ophthalmology
Advanced Ultrasound and Diagnostic Imaging

By combining emergency services with board-certified specialists and advanced diagnostics, we’re able to care for pets with both routine and complex medical conditions.

Don’t Wait If You’re Concerned

You don’t need to have all the answers before contacting a veterinarian.

If your pet is acting differently, showing signs of illness, or experiencing any of the symptoms discussed above, trust your instincts. Early evaluation can make all the difference.

If your pet is experiencing a medical emergency, COVE Pet Care provides emergency veterinary care and advanced specialty services for pets throughout Central Ohio. Our team is here to provide compassionate, expert care when your pet needs it most.

When Should I Take My Pet to the Vet? Signs You Shouldn’t Ignore