Thyroid storm is a life-threatening condition that develops in cases of untreated thyrotoxicosis (hyperthyroidism, or overactive thyroid).
Thyroid storm occurs in people with untreated hyperthyroidism. It is usually brought on by a major stress such as trauma, heart attack, or infection. Thyroid storm is very rare.
When to Contact a Medical Professional
This is an emergency condition. Call 911 or another emergency number if you have hyperthyroidism and experience symptoms of thyroid storm.
Thyrotoxic storm; Hyperthyroid storm; Accelerated hyperthyroidism
Bahn RS, Burch HB, Cooper DS, et al. Hyperthyroidism and other causes of thyrotoxicosis: Management Guidelines of the American Thyroid Association and American Association of Clinical Endocrinologists. Endocr Pract
Mandel SJ, Larsen PR, Davies TF. Thyrotoxicosis. In: Melmed S, Polonsky KS, Larsen PR, Kronenberg HM.Williams Textbook of Endocrinology
Update Date 5/10/2014
Updated by: Brent Wisse, MD, Associate Professor of Medicine, Division of Metabolism, Endocrinology & Nutrition, University of Washington School of Medicine, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.