Hyperthyroidism (Overactive Thyroid) Online

What is hyperthyroidism?

Hyperthyroidism (overactive thyroid) is a condition in which the thyroid gland produces too much thyroid hormone. The most common cause in Australia is Graves' disease, an autoimmune condition. Other causes include toxic nodules and thyroiditis.

Symptoms may include unintentional weight loss, heat intolerance, sweating, tremor, palpitations, anxiety, sleep disturbance, and changes in bowel habits. Some people develop eye symptoms such as bulging eyes with Graves' disease.

How a telehealth GP can help

A NewDoc GP can take a detailed history, order thyroid function tests, and issue referrals to an endocrinologist for definitive diagnosis and treatment. For ongoing monitoring, your GP can coordinate follow-up bloods and communicate with your specialist team. You can request a thyroid function test referral or follow up after results are back.

Some treatments such as radioactive iodine or thyroid surgery require specialist, in-person care. Antithyroid medications are typically initiated or overseen by specialists, but your GP may be involved in ongoing prescribing once stable.

Risk factors for hyperthyroidism

Hyperthyroidism is more common in women than men, and often develops between the ages of 20 and 50, though it can occur at any age. A personal or family history of autoimmune conditions (such as type 1 diabetes, coeliac disease, or rheumatoid arthritis) may increase the likelihood of Graves' disease.

Pregnancy and the postpartum period can trigger thyroid changes in some people. Excess iodine intake, certain medications, and previous thyroid disease are also relevant. Your GP will review your history to understand which factors may apply in your case. Symptoms such as anxiety, palpitations, and sleep disturbance can overlap with anxiety disorders, which is one reason a thyroid test is often part of an initial work-up.

Treatment options for hyperthyroidism

Treatment depends on the underlying cause, severity of symptoms, age, other medical conditions, and personal preference. Three main approaches are used in Australia: antithyroid medications (to reduce hormone production), radioactive iodine therapy (to reduce thyroid activity), and thyroid surgery. Decisions are made with an endocrinologist based on individual circumstances.

While awaiting specialist assessment, your GP may discuss short-term options for symptom control such as beta-blocker medications for palpitations or tremor, subject to clinical appropriateness. Tips for managing symptoms during this time may include avoiding stimulants such as excess caffeine, staying well hydrated, and getting adequate rest. Your GP will advise what is suitable for you.

Monitoring and follow-up

Hyperthyroidism usually requires ongoing monitoring. After starting treatment, thyroid function tests are typically repeated at intervals set by the specialist and GP, with dose adjustments based on results and symptoms. Some treatments can eventually lead to an underactive thyroid, which also needs monitoring.

Telehealth follow-up with your NewDoc GP is a convenient way to review results, discuss symptoms, and renew eScripts once stable. Pregnancy, planning pregnancy, or new symptoms warrant a prompt review, as management may need to change.

When to seek urgent care

Symptoms suggesting thyroid storm, such as very high heart rate, fever, confusion, or severe agitation, are medical emergencies. Call 000 or attend the nearest emergency department. Chest pain, severe shortness of breath, or marked weakness also warrant urgent in-person assessment.