Hypothyroidism is a pet’s inability to create enough of the necessary thyroid hormone, which results in a low-functioning metabolism. The disease is usually caused by a shrunken or inflamed thyroid gland, which commonly appears in middle-aged large dog breeds; hypothyroidism rarely occurs in cats and small dogs. On occasion, hypothyroidism is caused by a tumor that forcefully puts pressure on cells of the pituitary gland. In these cases, hypothyroidism can be life-threatening, thus seeking veterinary care is critical.

Most thyroid hormone deficiencies go unnoticed by pet owners because the symptoms appear gradually. By the time a new symptom onsets, an owner has already adjusted to a previous issue, not considering that the two could be connected and caused by the same underlying problem. If your pet is exhibiting any of the following symptoms, please contact our office to schedule an exam.

Symptoms of hypothyroidism: 

  • Droopy facial expression. 
  • Dull coat. 
  • Hair loss or thinning of hair.
  • Increased shedding. 
  • Intolerant of cold temperatures. 
  • Lethargy. 
  • Muscle weakness. 
  • Unexplained weight gain.

Treating hypothyroidism in pets

Pets that are positively diagnosed with hypothyroidism undergo hormone replacement therapy and remain on synthetic hormones for the remainder of their lives. In certain instances, the veterinarian may also find dietary restrictions helpful for your pet as well, such as limiting fat intake. After implementing the supplements, most symptoms subside within a few months, and the veterinarian will determine if levels can be reevaluated or adjusted, though this isn’t certain in all cases.

For pets receiving hormone therapy it is important to note that pet owners should not administer any medications or herbal supplements without consulting the veterinarian first. Medications react differently with synthetic hormones and it’s best to inquire first in order to prevent any subsequent issue.

If you have any questions about hormone therapy or about hypothyroidism, feel free to contact our office at your earliest convenience.


Read what people are saying about us.

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We took our 5 month old puppy in to get neutered today and had a great experience. They educate you on expenses without making you feel guilty if you decide against extra options. We were able to pick him up 5 hours after dropping him off which was also amazing. Would highly recommend to anyone looking for a vet.

Chelsea G.'s

Dr. Genova has been my 4 legged daughter's doctor for her whole life (10 years). He is very personable, informative and kind. I seriously cannot say enough positive things about him.. Why else would I trust him to take care of my baby girl?

The rest of the staff is also very kind. Most of them have changed throughout the years but one thing that hasn't is that you can immediately tell how much they all love animals.

This is definitely one of this places that I wish I could give more than 5 stars to.

John L.

We had our first experience at Village at Main Veterinary Hospital today and I couldn't wait to write a review because of how pleased I was with the entire staff and environment. I arrived way early for my appointment but they took me anyway since it was open with no problem at all. As soon as we walked in the door my puppy and I were greeted with smiles and even staff that didn't run the counter came out and greeted and loved on my puppy as well which really put her at ease. Every staff member acknowledged our presence at some point. We were taken back to an exam room and we saw Dr. Tran who was warm and loving toward my puppy, she really took her time and you could easily see that she loves what she does. Dr. Tran covered all of my questions I had planned to ask as well as asked if I had any others. I would highly recommend this clinic to anybody who has had a bad experience at another clinic because it will totally make up for it as it did in our case. Thank you so much again for making us feel right at home and loving what you guys do, I will continue to drive 30 minutes just to have my pooch continue to see you guys :)

Tiffany B.

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