What should you know about etiology of hyperthyroidism?

In autoimmune hyperthyroidism, the immune system stimulates the thyroid to keep making hormone. Inflammation can release stored hormone temporarily, while one or more nodules may produce hormone independently of the body’s usual control signals. Excess thyroid hormone speeds many body processes. Palpitations, excessive sweating, heat intolerance, feeling anxious, difficulty sleeping, diarrhoea, and night sweats may occur, although symptoms vary and other conditions can cause them.

A clinician will usually review symptoms, examine the neck and pulse, and request thyroid blood tests. Further tests may help distinguish autoimmune stimulation, inflammation, and nodules. Tell the clinician about thyroid products, supplements, recent illness, and medicines because these can affect results or hormone levels. Treatment is chosen according to the cause and may involve medicines, radioiodine, or an operation; specialist advice helps match the option to your situation.

Seek urgent help for a very fast or irregular heartbeat with chest pain, severe breathlessness, fainting, marked agitation, confusion, or high fever. Contact a clinician soon for new palpitations, worsening tremor, persistent diarrhoea, or symptoms during pregnancy. Do not change thyroid medicine without medical guidance.

Which cause is most likely from my examination and blood tests? Do I need imaging or antibody testing? How quickly should treatment work, and which symptoms should prompt urgent review?