Hyperthyroidism is a condition where the thyroid produces or secretes excessive amounts of thyroid hormone. If left untreated, hyperthyroidism is associated with an increased risk of osteoporosis, atrial fibrillation, and stroke. In rare cases, hyperthyroidism can progress to a life-threatening condition called thyroid storm, characterized by a sudden and severe worsening of hyperthyroid symptoms, including fever, rapid heartbeat, chest pain, and confusion.[1][2][3]
What is hyperthyroidism?
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•Last Updated: May 16, 2025
Hyperthyroidism is a condition characterized by the excessive production of thyroid hormone. If left untreated, it can increase the risk of osteoporosis, atrial fibrillation, and stroke, and in rare cases, it may escalate to a life-threatening condition called thyroid storm.