Symptoms of hypothyroidism begin slowly over weeks or months. You may have hypothyroidism for a long time before you realize you are ill. Symptoms change with the degree of the hypothyroidism and how long your body has not had the proper amount of thyroid hormone.
You may have only one of these symptoms, but usually patients have a combination. Some patients with hypothyroidism do not have symptoms or have mild symptoms that go unnoticed for a long period of time.
Other symptoms or signs include:
Symptoms of severe or extended cases include:
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Hypothyroidism. National Endocrine and Metabolic Diseases Information Service website. Available at: http://endocrine.niddk.nih.gov/pubs/Hypothyroidism/ . Updated February 27, 2012. Accessed November 20, 2012.
Singer P, Cooper D, Levy E, et al. Treatment guidelines for patients with hyperthyroidism and hypothyroidism. JAMA . 1995;273:808-812.
Wartofsky L. Myxedema coma. Endocrinol Metab Clin North Am. 2006;35:687-98.
Last reviewed March 2013 by Brian Randall, MD
Last Updated: 03/15/2013