Hypothyroidism occurs in dogs in a similar fashion to the way it develops in people. It is a health condition in which the thyroid doesn’t produce enough T4 and T3 hormones. A lack of these hormones causes the metabolism to malfunction and creates symptoms such as seizures, brain fog, hair loss, unusual shedding patterns, lethargy, weight gain, etc. Your dog will need to be examined by your vet for a diagnosis and treatment. There are different causes of hypothyroidism. Those include congenital or inherited/genetic conditions, iodine deficiency, different cancers, side effects of medications, or as a result of an injury, surgery or other trauma. Sometimes identifying the main cause and treating that cause can alleviate symptoms of hypothyroidism. Other treatments may include hormone therapies via injections or oral medications. You may have to try different treatments until a successful one is found. For more information, consult with your vet Brampton, ON.