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Cedar Veterinary Clinic
Call us today! 435-586-3400
Call us today! 435-586-3400

533 North Airport Road
Cedar City, UT 84720

10 Early Signs of Illness in Dogs Every Pet Parent Should Know

June 15 2025
At Cedar Veterinary Clinic, your trusted pet clinic in Cedar City, UT, we believe that recognizing the dog illness signs early can make all the difference for your canine companion’s health and happiness. As your local veterinary clinic, we’ve seen countless cases where prompt action helped Fido bounce back quicker than expected. In this guide, we’ll cover how to spot signs of illness in dogs, how to know if your dog is sick, and the early symptoms of dog diseases every pet parent should watch for. Dogs may not speak our language, but they sure do communicate—if you know what to look for.

Changes in Eating or Drinking Habits

One of the first dog illness signs you might notice is a sudden change in appetite or thirst.
  • Eating less or more than usual
  • Increased or decreased water consumption
These can point to a variety of issues—from digestive trouble to diabetes or kidney disease. Fun Fact: Dogs have about 1,700 taste buds, compared to our 9,000. So if Fido turns his nose up at his food, it’s not just pickiness—it might be something more.

Unusual Behavior or Mood Shifts

Is your usually bouncy pup suddenly hiding under the couch? A dramatic behavior shift is one of the subtle early symptoms of dog diseases. Look out for red flags, such as:
  • Increased aggression or irritability
  • Withdrawal or anxiety
  • Lethargy or excessive sleeping
These symptoms often indicate discomfort or pain and may be your pup’s way of saying, “Hey, something’s not right!”

Digestive Upset: Vomiting or Diarrhea

An occasional tummy upset can happen. But if vomiting or diarrhea lasts longer than 24 hours, call your veterinarian. Persistent digestive issues could signal many issues, including:
  • Intestinal parasites
  • Infections
  • Organ disease
Dehydration can also occur quickly in dogs, especially smaller breeds, so don’t delay.

Breathing or Coughing Concerns

Does your pooch sound like he’s practicing to join a jazz band with a raspy cough? While it might seem harmless, coughing, wheezing, or labored breathing are clear signs of illness in dogs. These issues could indicate:
  • Kennel cough
  • Allergies
  • Heart or lung disease
  • Heartworm
Short-nosed breeds like Pugs or Bulldogs may be especially vulnerable, so always take breathing issues seriously.

Skin and Coat Changes

That shiny coat is more than just Instagram-worthy—it’s a sign of health. Watch for:
  • Dry, flaky skin
  • Redness or swelling
  • Excessive scratching or licking
Many early symptoms of dog diseases appear in the skin first, from allergies to infections to autoimmune conditions.

Sudden Weight Gain or Loss

If your four-legged friend starts looking fluffier—or thinner—without a diet change, it could be a warning sign. Unexplained weight changes often point to medical issues, such as:
  • Hormonal imbalances
  • Thyroid disorders
  • Diabetes or other chronic conditions
A veterinary clinic visit can quickly determine the cause and get Fido back on track.

Mobility Issues or Limping

A limping dog isn’t necessarily just nursing a sprain—it could be arthritis, joint disease, or even neurological issues. Watch for:
  • Reluctance to climb stairs
  • Stiffness after naps
  • Bunny-hopping or dragging legs
Large breeds and seniors are most susceptible, but pups of all ages can be affected.

Eye or Nose Discharge

Some morning eye “boogers” are normal. But persistent discharge, swelling, or cloudiness in the eyes or nose may suggest an infection or allergy. Other things to look for include:
  • Squinting
  • Excessive blinking
  • Unusual eye color changes
Don’t wait for Fluffy’s look to turn from soulful to sorrowful—schedule a visit with our veterinarians.

Bad Breath or Dental Issues

That doggy breath might be more than just unpleasant—it could be a sign of infection. Look for:
  • Foul-smelling breath
  • Drooling
  • Difficulty eating or pawing at the mouth
  • Bleeding gums
  • Swelling
  • Visible Tartar Buildup
Dental disease affects up to 80% of dogs by age three. Don’t let your canine pal’s smile fade—your animal hospital team is here to help.

Repeated Scratching or Head Shaking

If your pooch resembles a bobblehead or can’t stop scratching his ears, it may be due to:
  • Ear infections
  • Mites
  • Allergies
Some ear problems can lead to hearing loss if untreated, so a trip to the pet clinic is a must.

When in Doubt, Contact Your Local Vet

These dog illness signs are just the tip of the iceberg. Always trust your gut—after all, nobody knows your canine buddy better than you do. If something seems off, give your vet clinic a call. The Cedar Veterinary Clinic team in Cedar City, UT is here to provide caring, compassionate care to your four-legged friend. Whether it’s something small or something serious, our veterinary clinic is equipped to help.

FAQs

What are the most common early symptoms of dog diseases?

Some of the most common early signs include vomiting, diarrhea, lethargy, appetite changes, and skin irritation. These can signal anything from mild issues to serious conditions.

How can I tell if my dog is sick?

Changes in behavior, energy levels, eating, or grooming habits are often the first clues, but take note of anything that seems off for your furry friend. If you’re ever unsure, reach out to your vet near me for guidance.

When should I take my dog to the vet for a cough?

If coughing lasts more than a couple of days, becomes more intense, or is accompanied by breathing difficulties, call your veterinarian right away.

Why is my dog suddenly scratching so much?

Scratching can be caused by allergies, fleas, skin infections, or even stress. An exam at your local vet clinic can help pinpoint the cause.

Can weight gain in dogs mean something serious?

Yes—especially if there haven’t been changes in diet or activity. It could indicate hypothyroidism or other metabolic concerns.

Visit Our Veterinary Clinic in Cedar City, UT

At Cedar Veterinary Clinic, we want your furry bestie to stay happy and healthy for years to come. Recognizing dog illness signs early is a crucial part of proactive care. Whether it’s a wellness visit or something more urgent, our vets are here to help. This article is intended for informational purposes only. Always consult your veterinarian for diagnosis, treatment, and care decisions tailored to your pet’s needs.

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