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Hyperthyroidism
An overactive thyroid that speeds up the body's metabolism. Tracking your symptoms and connecting with others who understand can help you manage day to day.
This information is for educational purposes only and is not medical advice. Always consult your healthcare provider about your specific condition and treatment.
When to seek help
Seek emergency care for a fast, irregular heartbeat, chest pain, high fever, or severe agitation (possible thyroid storm).
If you are experiencing a medical emergency, contact your local emergency services immediately.
Overview
Hyperthyroidism (overactive thyroid) means your thyroid makes too much thyroid hormone, speeding up many body functions.
Symptoms
- Unexplained weight loss
- Rapid or irregular heartbeat
- Feeling nervous or irritable
- Trembling hands
- Increased sweating and heat intolerance
Causes
Most often Graves' disease, an autoimmune condition. Other causes include thyroid nodules and thyroiditis (inflammation).
Types
- Graves' disease (most common)
- Toxic nodular goiter
- Thyroiditis
Diagnosis
Diagnosed with blood tests for TSH and thyroid hormones, and sometimes a thyroid scan or uptake test.
Treatment
Treated with antithyroid medicines, radioactive iodine, or sometimes surgery, plus beta-blockers for symptoms. The choice depends on the cause and your age.
Living with it
- Take antithyroid medicine as prescribed
- Do not smoke - it can worsen eye problems from Graves' disease
- Keep regular thyroid blood tests
- Tell your doctor about any new palpitations or weight changes
Complications
- Irregular heartbeat and heart problems
- Brittle bones (osteoporosis)
- Eye problems (Graves' ophthalmopathy)
- Thyroid storm (rare, life-threatening)
Frequently asked questions
Will treatment make my thyroid underactive?
Sometimes. Radioactive iodine and surgery often lead to an underactive thyroid, which is then managed easily with daily hormone replacement.
Join the Hyperthyroidism community
Talk with people who understand, share what helps, and find support from others living with hyperthyroidism. Private, moderated, and free.
Posts in this community reflect personal experiences, not medical advice. Always talk to your doctor before changing your treatment.