Studies have concluded the American Cocker Spaniel breed has a high prevalence for Autoimmune Thyroiditis. The Cockers' immune system forms antibodies that attack his own T3, T4, and thyroglobulin, a substance necessary for forming thyroid hormones. Symptoms, diagnosis, and treatment are similar to those for Hypothyroidism except that the diagnosis of Autoimmune Thyroiditis includes the presence of thyroid antibodies in the blood.
Note: This section of the Canada's Guide to Dogs website is intended as a source of information only. It is not intended as a substitute for professional care. Always consult with your Veterinarian about health related matters.