What is hyperthyroidism?
Hyperthyroidism is excess production of thyroid hormone.
Symptoms, causes and assessment
Palpitations, heat intolerance, weight loss, tremor or sleep problems may occur and can resemble other conditions. Blood tests assess hormone levels; antibodies or imaging may help identify the cause. Different thyroid disorders need different care.
Care and when to seek help
Options such as medicine, radioactive iodine or surgery depend on the person. Very fast heartbeat, fever or altered awareness requires urgent help; do not change treatment on your own.
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