Graves disease

Last updated: 24 August 2026
Reviewed by: Specialist doctors from the Elfcare quality team

A racing heart, or feeling restless yet exhausted at the same time, can be a common sign of an overactive thyroid, often caused by Graves' disease, an autoimmune condition that speeds up metabolism. Because these symptoms can mimic everyday stress, Graves' disease is often overlooked until it starts putting strain on the heart and bones.

Graves' disease is the most common cause of hyperthyroidism and one of the most directly detectable autoimmune conditions through blood testing. The TRAK antibodies that drive it are present in 95% of cases and are included in Elfcare’s standard panel.

Early identification at the suppressed TSH stage allows for targeted treatment, preventing serious long-term complications like atrial fibrillation, bone density loss, and permanent eye changes.

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What is Graves disease?

Graves' disease is an autoimmune condition in which the immune system produces TSH receptor antibodies (TRAK) that continuously stimulate the thyroid gland, causing it to overproduce T3 and T4. Unlike other forms of hyperthyroidism, where a single nodule or transient inflammation drives hormone excess, Graves' disease involves a sustained, systemic autoimmune process that can affect the thyroid, eyes, and skin simultaneously.

It is the most common cause of hyperthyroidism in young adults, affecting women roughly seven times more often than men, and typically presenting between the ages of 20 and 50.

Symptoms of Graves disease

Graves' disease symptoms reflect both the systemic effects of excess thyroid hormone and the autoimmune attack on extrathyroidal tissues. Common signs include:

From hyperthyroidism:

  • Unexplained weight loss despite normal or increased appetite

  • Rapid, irregular, or pounding heartbeat

  • Anxiety, nervousness, and irritability

  • Tremor: fine trembling of the hands and fingers

  • Heat intolerance and excessive sweating

  • Fatigue and muscle weakness

  • Difficulty sleeping

  • Frequent bowel movements

Specific to Graves' disease:

  • Goitre: diffuse, smooth thyroid enlargement visible or palpable at the front of the neck

  • Graves' ophthalmopathy: the most distinctive feature; affects up to 50% of patients. Caused by autoimmune inflammation of the orbital tissues, it can cause proptosis (bulging eyes), lid retraction, eye redness and irritation, double vision, and in severe cases optic nerve compression threatening sight

  • Pretibial myxoedema: a rare, thickened skin change on the shins.

What causes Graves disease?

Graves' disease results from immune dysregulation: the production of TRAK antibodies that activate TSH receptors and drive unregulated thyroid hormone production. Contributing factors include:

  • Genetic predisposition: strong familial clustering; specific HLA variants increase susceptibility

  • Sex and hormonal factors: significantly more common in women; hormonal transitions (pregnancy, postpartum, menopause) can trigger onset

  • Smoking: increases both the risk of Graves' disease and the severity of ophthalmopathy

  • Stress: major psychological or physiological stress can precipitate onset in susceptible individuals

  • Other autoimmune conditions: type 1 diabetes, rheumatoid arthritis, and Addison's disease co-occur with Graves' at higher rates.

How is Graves’ disease detected?

Graves' disease is one of the most directly detectable autoimmune conditions. Blood testing provides both the functional picture (hormone levels) and the specific autoimmune confirmation (TRAK). Elfcare's panel includes the complete Graves' disease profile:

  • TRAK (TSH receptor antibodies): the defining marker; elevated in over 95% of Graves' cases and the only test that confirms the autoimmune mechanism specifically. Distinguishes Graves' from other causes of hyperthyroidism

  • TSH: suppressed (low or undetectable) in active Graves' disease; the most sensitive functional indicator of hyperthyroidism

  • Free T4 and Free T3: elevated in overt disease; T3 toxicosis (isolated T3 elevation) is an important variant

  • Calcium: hyperthyroidism accelerates bone turnover and can elevate serum calcium

  • ALP: elevated in active bone remodelling caused by excess thyroid hormone

Neck and orbital MRI: Elfcare's full body MRI covers the neck soft tissues, directly imaging the thyroid and identifying goitre or structural changes. Importantly, brain MRI includes the orbits, where Graves' ophthalmopathy causes characteristic enlargement of the extraocular muscles, a finding that can confirm orbital involvement and guide ophthalmological assessment.

Why early detection matters

Thyroid imbalances develop gradually, impacting sleep, mood, and concentration long before symptoms become obvious. In the case of Graves’ disease, early detection is critical to preventing irreversible damage. Untreated hyperthyroidism can lead to atrial fibrillation in 15% of cases, increasing stroke risk, as well as accelerated bone density loss and permanent visual impairment from Graves' ophthalmopathy.

Identifying suppressed TSH or TRAK antibodies early makes it possible to intervene before serious complications arise, and to start treatment while the condition is at its most manageable.

How Elfcare can help

Elfcare's blood panel includes TRAK, TSH, Free T4, and Free T3, a complete Graves' disease profile that confirms both the autoimmune mechanism and its hormonal consequences. TRAK is the most specific single test for Graves' disease and distinguishes it definitively from other causes of hyperthyroidism.

Our neck and orbital MRI adds structural context, imaging the thyroid for goitre and the orbits for signs of Graves' ophthalmopathy.

If our blood tests or MRI identify a suspicious finding, we take care of further diagnostics or refer you to the appropriate specialist.

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Summary

Graves' disease is the leading cause of hyperthyroidism but often goes unnoticed, since its early symptoms, like restlessness or fatigue, mimic everyday stress. Catching it early matters for preventing long-term strain on the heart, bones, and vision. Elfcare measures TRAK, the defining autoimmune marker, alongside TSH, free T4, and free T3, while our neck and orbital MRI identifies structural changes like goitre or early signs of Graves' ophthalmopathy.

Last updated: 24 August 2026
Reviewed by: Specialist doctors from the Elfcare quality team

FAQ

  • Graves' disease is an autoimmune condition in which TRAK antibodies continuously stimulate the thyroid gland, causing it to overproduce thyroid hormones (hyperthyroidism). It is the most common cause of hyperthyroidism and can also affect the eyes (Graves' ophthalmopathy) and skin. It affects women significantly more often than men.

  • Symptoms of hyperthyroidism (weight loss, rapid heartbeat, anxiety, tremor, heat intolerance, fatigue, and sleep difficulties) combined with Graves'-specific features: goitre, eye changes (proptosis, double vision, eye irritation), and rarely skin changes on the shins. Eye involvement can occur even when thyroid hormone levels are controlled.

  • An autoimmune response producing TRAK antibodies that activate TSH receptors and drive unregulated thyroid hormone production. Genetic predisposition, female sex, smoking, hormonal transitions, and stress are established contributing factors.

  • Blood tests are the primary tool. TRAK antibodies confirm the autoimmune diagnosis specifically. Suppressed TSH with elevated Free T4 and Free T3 confirms hyperthyroidism. Neck MRI identifies goitre; orbital MRI identifies extraocular muscle enlargement from ophthalmopathy.

  • Yes. Elfcare's blood panel includes TRAK, the defining autoimmune marker, alongside TSH, Free T4, and Free T3. Our MRI covers the neck and orbits. If a suspicious finding is made, we take care of further diagnostics or refer you to the appropriate specialist.

  • Yes. Treatment options include antithyroid medications (carbimazole, propylthiouracil), radioactive iodine therapy, and thyroid surgery. Graves' ophthalmopathy is managed separately with specialist ophthalmological care and, in active disease, immunosuppressive treatment. With appropriate management, most people achieve good long-term control.