Introduction To Hyperthyroidism In Canines

The thyroid gland secretes a hormone named thyroxine. If the gland starts produces too much thyroxine, your dog will develop hyperthyroidism. It normally affected middle-aged and old dogs. Keep reading to learn all about dog hyperthyroidism.


This is a rare condition. When hyperthyroidism occurs, it’s usually because of cancer in the thyroid gland. A growing tumor will keep the gland from functioning as it should. Thyroxine will then start being overproduced.


Many different organs can be affected by this slowly progressing disease. One of the most common symptoms of this condition is weight loss. Most dogs will eat more than usual, but some will eat less.

Your dog may also become hyperactive. For others, it’s the complete opposite as they will appear lethargic. Some of the other symptoms that dogs display are increased heart rate, increased urination, and weakness.


Initially, your dog will receive a physical exam. The heart rate will be elevated and thyroid gland enlarged if hyperthyroidism is the problem. Numerous tests are necessary on a blood sample also. The level of thyroxine in the bloodstream may appear normal at the office, although it will vary dramatically over time. Your dog will have to have the level of thyroxine checked again in a few weeks to see the difference.


Hyperthyroidism in dogs is a condition which can effectively be treated. Thyroid gland function will be controlled via medication. Your dog may even need to undergo surgery.

Surgery involves removing one or both thyroid glands, but this may lead to hypothyroidism instead. Dog hypothyroidism is a condition in which too few thyroid hormones are produced.

All owners should know a little something about various diseases that can affect their dog. You can read up on many different potential health problems at Click over right now.

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