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Hyperthyroidism

Learn about hyperthyroidism: causes, symptoms like weight loss, and treatment options like medication or surgery.

Health
Last reviewed: 7/29/2025

Key Takeaways

  • - **Hyperthyroidism** is a condition in which the thyroid gland produces too many hormones. - The main symptoms include weight loss, rapid heartbeat, and irritability. - Treatment options include medication, radioactive iodine therapy, or surgery.

Hyperthyroidism - Overactivity of the thyroid gland, increasing metabolism.

Key Takeaways:

  • Hyperthyroidism is a condition in which the thyroid gland produces too many hormones.
  • The main symptoms include weight loss, rapid heartbeat, and irritability.
  • Treatment options include medication, radioactive iodine therapy, or surgery.

What Is Hyperthyroidism?

Hyperthyroidism occurs when the thyroid gland, located in the neck, becomes overactive, leading to an excess production of thyroid hormones. These hormones regulate metabolism, affecting various body functions, such as:

  1. Energy levels
  2. Heart rate
  3. Weight management

Symptoms of Hyperthyroidism:

  1. Weight Loss despite normal or increased appetite.
  2. Increased Heart Rate or palpitations.
  3. Nervousness or irritability.
  4. Sweating and heat intolerance.
  5. Fatigue and muscle weakness.
  6. Enlarged Thyroid Gland (Goitre).

Causes of Hyperthyroidism:

  1. Graves' Disease: An autoimmune disorder causing the thyroid to overproduce hormones.
  2. Thyroid Nodules: Overactive lumps in the thyroid.
  3. Thyroiditis: Inflammation of the thyroid gland.

Diagnosis:

Hyperthyroidism is diagnosed through:

  1. Blood Tests: Measure levels of thyroid hormones (T3 and T4) and TSH.
  2. Thyroid Scan: Detects overactive areas in the gland.

Treatment Options:

  1. Medication: Antithyroid drugs help reduce hormone production.
  2. Radioactive Iodine Therapy: Destroys overactive thyroid cells.
  3. Surgery: Partial or complete removal of the thyroid gland in severe cases.

Managing Hyperthyroidism:

  • Eat a balanced diet to manage weight changes.
  • Monitor symptoms regularly.
  • Follow up with a healthcare provider for ongoing care.

Related Terms:

  1. Thyroid Hormones: Includes T3 (triiodothyronine) and T4 (thyroxine).
  2. Graves' Disease: A leading cause of hyperthyroidism.
  3. Thyroid Function Test - Diagnostic test for thyroid disorders.