Hyperthyroidism

Thyroid Conditions & Diseases

Hyperthyroidism, also known as an overactive thyroid, occurs when the thyroid gland produces more thyroid hormone than the body needs. This speeds up the body's metabolism and can cause symptoms such as unintended weight loss, a rapid or irregular heartbeat, increased appetite, nervousness, tremors, sweating, and difficulty sleeping. Common causes include Graves' disease, thyroid nodules, and inflammation of the thyroid gland. With proper diagnosis and treatment — including medication, radioactive iodine therapy, or surgery when needed — hyperthyroidism can be effectively managed.

Book Appointment Last updated 19 Sep 2026

This page gives general information and is not a substitute for a medical consultation. Please consult a doctor for advice about your own condition.

Some Important FAQ's

Frequently Asked Questions

Typical symptoms are weight loss despite a good appetite, a fast or irregular heartbeat, sweating, tremor, anxiety, difficulty sleeping and feeling too warm. A blood test confirms the diagnosis.

Options include anti-thyroid medicines, radioactive iodine and surgery. The best choice depends on the cause, the size of the thyroid and your age and health, and your specialist will explain it to you.

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