910-293-3348
Book Now
Site Logo
  • About
    • Meet Our Doctors
      • Dr. Margie Houston Hunter
      • Dr. Owen Martin
      • Dr. Meredith Davis Holmes
      • Dr. Laura Grady
      • Dr. Laura Panchoo
    • Meet Our Team
    • FAQ’s
    • Reviews
  • Services
    • Preventive Care
    • Wellness Care
    • Puppy & Kitten Care
    • Dental Care
    • Surgical Services
    • Digital Radiography
    • In-House Laboratory
    • Grooming
    • Pet Supplies
  • Urgent Care
  • Resources
    • Veterinary Topics
  • Contact
  • Pet Lodge
910-293-3348
Request Appointment

Is My Dog Fat Or Is It A Thyroid Problem?

Book Online
Call: 910-293-3348
Back
Image
Created in Newsletter Library

Has Your Dog Gained Weight? A Thyroid Problem Could Be to Blame

Chubby pets may look cute but even a few extra pounds can increase your dog’s chances of developing diabetes, arthritis, heart disease, and other health conditions. Gaining weight isn’t always due to overeating, but can be a sign of a thyroid condition. The risk of thyroid problems increases as your dog ages and is more common in certain breeds.

Determining the Cause of Your Pet’s Weight Gain

Like most pets, your dog probably has no difficulty letting you know that he or she is hungry. No matter how hard you try, it can be difficult to resist those pleading eyes or ignore the empty food bowl dropped at your feet.

An occasional snack between meals probably won’t change your pet’s weight, but too many snacks and treats can have a detrimental effect. You may not be giving your pet between-meal snacks, but what about other family members? When the whole family slips a treat to the pet, obesity can be an unfortunate consequence.

Keep in mind that nutritional requirements change as your pet ages. Adults dogs don’t need to consume as many calories as growing puppies, and less active senior dogs need even fewer calories. If you continue to feed your adult dog puppy food or fill your senior dog’s bowl with food meant for a younger dog, the numbers on the scale may increase even though your pet isn’t overeating.

If no one is giving your pet extra food, and you’re offering the right type of food for your pet’s age, a thyroid problem could be responsible for your dog’s weight gain.

What Type of Thyroid Disease Causes Weight Gain in Dogs?

Weight gain can be a sign that your dog has hypothyroidism, a condition that occurs due to decreased production of thyroid hormones. These hormones regulate important bodily functions, including metabolism, heart rate, brain development, temperature, breathing, cholesterol levels, and muscle strength.

Hypothyroidism affects metabolism by slowing the rate that your pet burns calories. Your dog may gain weight despite no changes in food or eating habits. In addition to weight gain, other symptoms of hypothyroidism may include:

  • Poor Stamina
  • Fatigue and Lethargy
  • Decreased Appetite
  • Shedding
  • Dull Coat
  • Hair Thinning or Loss
  • Ear or Skin Infections
  • Drooping Facial Muscles
  • Intolerance to Cold Temperatures
  • Thickened Skin or Skin Pigment Changes
  • Goiter (a swelling on your dog’s neck due to thyroid enlargement)

Age and size can be factors in hypothyroidism. The condition usually affects middle-aged or older dogs and occurs more often in large and medium dogs. Irish Setters, Doberman Pinschers, Golden Retrievers, Airedale Terriers, Cocker Spaniels, and Dachshunds are at higher risk of developing hypothyroidism, according to the American Kennel Club.

In some cases, hypothyroidism can be caused by cancer. Fortunately, thyroid cancer isn’t common in dogs.

How is Hypothyroidism in Dogs Treated?

Your pet’s veterinarian will consider your dog’s symptoms and the results of blood tests when making a diagnosis. If your furry friend is diagnosed with hypothyroidism, he or she will need to take an oral hormone replacement medication every day and receive regular blood tests to monitor thyroid hormone levels. Hormone replacement therapy is very effective and will allow your dog to live a normal life.

Are you concerned about your dog’s weight? We treat hypothyroidism and other health issues that cause weight gain and can also provide weight loss suggestions and advice. Contact us to schedule your pet’s appointment.

Sources:

Washington State University: Hypothyroidism in Dogs

https://www.vetmed.wsu.edu/outreach/Pet-Health-Topics/categories/diseases/hypothyroidism-in-dogs

WebMD: Why Is My Dog Gaining Weight?

https://pets.webmd.com/dogs/dog-gaining-weight#1

American Kennel Club: Thyroid Disease in Dogs

https://www.akc.org/expert-advice/health/thyroid-disease-in-dogs/

Categories

Choosing Your Pet
  • Cats
  • Dogs
  • Exotics
  • Finding Your Pet
  • Livestock
  • Small Mammals
Client Survey
Living With Your Pet
  • Bringing Your Pet Home
  • Children and Pets
  • Providing Care
  • Saying Goodbye
  • Travel
Newsletter Library
  • Behavior & Training
  • Cats
  • Fleas & Parasites
  • Keeping Pets Healthy
  • Newsletter Archive
  • Nutrition & Food
  • Pet Dangers
  • Recognizing Illness
  • Seasonal Topics
  • Tips for Pet Owners
  • Visiting the Vet
Pet Health
  • Chronic Conditions
  • Digestive and Oral Health
  • Diseases and Viruses
  • Orthopedics
  • Pests and Parasites
Pets4Kids
Today's Veterinarian
Video Newsroom
  • Health Topics
  • Other Interests
  • Technology and Science
Cta Image

Where Every Pet Is Welcomed and Cared for Like Family

Request Appointment
910-293-3348
Tree

Stories from Happy Pet People

Quote Icon
If I could give more than 5 stars I would. This vet helped me find out that my beautiful girl Nabi had cancer and they did everything they could to help me and my family. Ultimately her cancer came back and we had to make the decision to put my girl down. It was the hardest thing I have ever done but, the fact there were familiar people there I have spoken to and the fact they were so empathetic helped so much. I was able to let my grief out with no judgment. They even provided me keepsakes which have helped me so much. Coping is hard. It was traumatic, messy and, heartbreaking but, the staff helped me with everything. I could not recommend a better vet.

Hannah P.

Quote Icon
Yes yes and Yes!!! I will NEVER take my dog anywhere else. Im so glad I listened to the Facebook reviews we drove 45 miles to get here because the care my boy received in Wilmington was just not up to par. From the front counter back to the doctor everyone was absolutely amazing 👏 👏Dr Laura Grady is a God send and Blu was perfectly comfortable with her by the time we left! I knew that when I seen they had a Bible verse printed on my bill I made the right decision💙. Thank you all so much from the bottom of our hearts.

Sun & Sand

Quote Icon
I went yesterday 12/3 to have our beloved 16 year old pitbull put to rest and I cannot sing adequate praises for the staff! They were so kind and accommodating to me during such a difficult time. The doctor talked me through every step and they provided the best care out there. After he had crossed the rainbow bridge, they gifted us two pawprint keepsakes and two locks of hair as keepsakes. They even provided my old man Hershey's kisses and called them "goodbye kisses" because dogs don't usually get to have chocolate, as well as a ton of treats. If I ever find myself in that position again I wouldn't rather be under the care of anyone else other than Warsaw Animal Hospital❤️

Kenzie H.

Quote Icon
Definitely will never carry my animals anywhere else after finding Warsaw Animal Hospital!! The Vets and all the other personnel very professional. but yet still down to earth people! They really care about the animals they treat and are very reasonably priced. The entire staff makes me and my pets feel like that are really glad to see both me and my pets. The Vets do not act like they are better than you unlike some vets I have been to. All the personnel always have a smile for me, talk openly with me and make me and my pets feel welcome and really appreciated for choosing and trusting Warsaw Animal Hospital to take great care of my pets!!

Michael S.

Quote Icon
This is one of the best places to take your animal. I was so surprised how they handle things. My cat fell and couldn't walk and i was so sure they would have to put her down. instead these people went above and beyond to get my sweetheart back home with me healthy as she was before hand. then when she was diagnosed with diabetes they have been there every step of the way to make her illness not as cripling as it could be. I moved to jacksonville and still drove over a hour to keep going back here until it became too much on my fur baby but they are so worth it. If you are in the area of this place look no where else they are the best at what they do.

Danyale H

Arrow Icon
Arrow Icon
READ MORE REVIEWS
Image

We’re Here When You Need Our Care

1472 Hwy 24 & 50  Warsaw, NC 28398

910-293-3348

Monday: 7:45 am-6:00 pm
Tuesday: 7:45 am-6:00 pm
Wednesday: 7:45 am-12:00 pm
Thursday: 7:45 am-6:00 pm
Friday: 7:45 am-6:00 pm
Saturday & Sunday: Closed

Request Appointment
Footer Image
© 2026 Warsaw Animal Hospital. All Rights Reserved. | Privacy Policy | Terms of Use | Accessibility | Sitemap
Image
  • About
    • ← Back
    • Meet Our Doctors
      • ← Back
      • Dr. Margie Houston Hunter
      • Dr. Owen Martin
      • Dr. Meredith Davis Holmes
      • Dr. Laura Grady
      • Dr. Laura Panchoo
    • Meet Our Team
    • FAQ’s
    • Reviews
  • Services
    • ← Back
    • Preventive Care
    • Wellness Care
    • Puppy & Kitten Care
    • Dental Care
    • Surgical Services
    • Digital Radiography
    • In-House Laboratory
    • Grooming
    • Pet Supplies
  • Urgent Care
  • Resources
    • ← Back
    • Veterinary Topics
  • Contact
  • Pet Lodge

910-293-3348

1472 Hwy 24 & 50  Warsaw, NC 28398

Request Appointment