Hyperthyroidism in cats causes the opposite problem. According to Dr. Barrack, your cat’s coat may start to look greasy and matted. Cats will sometimes stop grooming themselves and develop an unkempt appearance.
4. Intolerance to Cold
According to Dr. Barrack, aversion to cold can indicate hypothyroidism in dogs. You might notice your pet shivering in the cold or turning back toward the house to cut potty breaks short on cold days. He might also sit close to the heat vent, burrow under blankets or be reluctant to leave his warm bed.
5. Vomiting or Diarrhea
Over time, hyperthyroidism in cats can progress to a more serious symptoms, such as vomiting. “Left untreated, cats with thyroid problems can also develop secondary problems such as high blood pressure and heart disease,” warns Dr. Barrack.
If your pet is experiencing any of these symptoms, talk to your veterinarian. If your dog or cat does have thyroid problems, they can typically be treated with prescription pet medication. However, when left untreated, these problems can greatly affect the quality of your pet’s life.