What is Graves' Disease? Symptoms, Diagnosis, and Treatment Methods

Graves' Disease

Graves' disease is an autoimmune condition that specifically affects the thyroid gland and is the most common cause of hyperthyroidism. Symptoms include weight loss, nervousness, sweating, palpitations, and prominence of the eyes. Medication therapy, radioactive iodine, or surgical options may be chosen to regulate hormone levels. A treatment plan that also considers eye-related symptoms and effects on other organs typically requires a multidisciplinary approach.

What is Graves' Disease?

Graves' disease is an autoimmune disorder in which the immune system attacks the thyroid gland, causing it to produce excess hormones. Graves' disease is an autoimmune condition resulting from an erroneous attack by the immune system on the thyroid gland, whereas the immune system should normally play a protective role against harmful elements. In this case, the immune system produces antibodies against the thyroid gland (specifically thyroid-stimulating immunoglobulin, or TSI). These antibodies stimulate the thyroid gland, leading to continuous hormone secretion. Consequently, there is an excess of thyroid hormone in the body. This causes the metabolism to accelerate and disease-specific symptoms to develop. This disease leads to various symptoms in the body by accelerating the metabolism. It generally exhibits symptoms such as weight loss, nervousness, hand tremors, palpitations, and sweating. In some cases, forward displacement of the eyes (exophthalmos) is also observed. Treatment options include medications, radioactive iodine therapy, and surgical interventions. It can be controlled with early diagnosis and appropriate treatment.

How Does Graves' Disease Develop?

Graves' disease is an autoimmune disorder in which the immune system targets the thyroid gland, causing it to produce excess hormones. Normally, while the immune system recognizes and fights elements that could harm the body, in Graves' disease this system somehow perceives the thyroid gland as "foreign" and produces antibodies. These antibodies continuously stimulate the thyroid gland, leading it to become overactive. As a result, the thyroid hormone level rises, which accelerates the metabolism and leads to various symptoms.

What Are the Symptoms of Graves' Disease?

The symptoms of Graves' disease can affect different systems of the body and mostly manifest as rapid metabolism symptoms caused by excess thyroid hormones. The most common symptoms are:

Weight loss: Weight loss in Graves' disease stems from the acceleration of metabolism due to excessive hormone production by the thyroid gland. This condition increases the energy the body expends even while normally at rest. Patients often lose weight despite having an increased appetite. In other words, the body burns more calories than it needs, which leads to weight loss. Rapid and involuntary weight loss in particular is one of the important signs of Graves' disease.

Nervousness and anxiety: Nervousness and anxiety in Graves' disease are a direct effect of the excessive production of thyroid hormones. Because high thyroid hormone levels speed up body functions, mood changes, restlessness, and tension emerge. In this case, individuals may become more sensitive to situations where they would normally remain calm and can get irritated more easily. The increase in heart rate and the state of continuous worry can also lead to sleep problems, negatively affecting the quality of life.

Palpitations: Palpitations in Graves' disease stem from excess thyroid hormones in the body increasing the heart rate. This condition is felt as irregular or fast beats in the heart and generally creates restlessness. The rapid working of the heart can lead the person to a constant feeling of stress and discomfort; sometimes a feeling of pressure or fullness in the chest accompanies it. Palpitations can become more pronounced especially during rest or before sleep, which can negatively affect the patient's sleep quality and overall peace.

Tremor and sweating: Tremor and sweating in Graves' disease appear as a result of high thyroid hormone levels overstimulating the nervous system. Tremor is usually prominent in the hands and can lead to a feeling of discomfort in the person. Increased metabolism, on the other hand, raises body temperature, and this condition causes excessive sweating. Becoming more sensitive to hot environments, patients may sweat more frequently in daily life and feel more discomfort related to heat.

Enlargement and forward protrusion of the eyes (exophthalmos): Enlargement and forward protrusion of the eyes (exophthalmos) in Graves' disease develop as a result of the immune system also attacking the tissues around the eyes. This condition can lead to the eyes protruding noticeably forward, retraction of the eyelids, and swelling and redness around the eyes. Problems such as dryness of the eyes, sensitivity to light, and visual disturbances may also accompany it. If left untreated, it can seriously affect eye health; therefore, early intervention and special care directed at eye health are important.

How Is Graves' Disease Diagnosed?

Graves' disease is diagnosed through clinical symptoms along with blood tests and imaging methods. First, high thyroid hormone levels (T3 and T4) and low thyroid-stimulating hormone (TSH) levels are sought in the blood. Additionally, a thyroid-stimulating antibody (TSI) test can be performed to confirm that it is of autoimmune origin. A radioactive iodine test, on the other hand, can show that the thyroid is working excessively. If there are eye symptoms, a detailed eye examination also supports the diagnosis.

How Is Graves' Disease Treated?

The treatment of Graves' disease aims to control symptoms and balance thyroid hormone levels. The main treatment methods are:

Anti-thyroid medications: Anti-thyroid medications are drugs used in Graves' disease to reduce the excessive hormone production of the thyroid gland. These medications help bring hormone levels under control by slowing down the synthesis of thyroid hormones. Commonly used anti-thyroid drugs include methimazole and propylthiouracil. This treatment method is particularly preferred for patients in the initial stage. Medications are generally for short- or long-term use; the duration of treatment is determined according to the patient's condition upon the doctor's recommendation.

Radioactive iodine therapy: Radioactive iodine therapy is a method that targets the overactive parts of the thyroid gland in Graves' disease and gradually destroys thyroid cells. Radioactive iodine is taken orally and accumulates directly in the thyroid tissue, thus hormone production decreases. This treatment generally provides a permanent solution, but hypothyroidism may develop in the case of over-suppression of the thyroid. If hypothyroidism develops, thyroid hormones are supplemented externally with medication and balanced.

Surgery: Surgical treatment is the procedure of removing all or a large part of the thyroid gland in Graves' disease and is known as a thyroidectomy. It is particularly preferred for patients who do not respond to other treatment methods or for whom radioactive iodine therapy cannot be applied. After surgery, thyroid hormone levels can drop significantly; in this case, lifelong hormone supplementation may be required. The necessity of the operation is evaluated based on the patient's general health status, age, and severity of symptoms.

Frequently Asked Questions

Graves' disease is not directly fatal, but it can give rise to serious complications. Especially an excessive increase in heart rate can lead to heart failure. Additionally, if left untreated, it carries long-term risks such as eye problems and bone thinning. These risks can be brought under control with early diagnosis and appropriate treatment. Graves' disease is not cancer. It is an autoimmune disease and arises when the body's immune system mistakenly attacks the thyroid gland. Although it has no relation to cancer, it can lead to severe disruptions in the functioning of the thyroid gland. Graves' disease can become dangerous when left untreated. By accelerating heartbeats, it can cause rhythm disturbances and high blood pressure. Additionally, it can lead to serious health problems such as bone thinning (osteoporosis), muscle weakness, and thyroid storm. Eye symptoms can also affect the quality of life. Foods with high iodine content (for example, seaweed) are generally not recommended because they can cause the thyroid to produce more hormones. Furthermore, caffeinated beverages can also increase the heart rate and cause palpitations. It is recommended to avoid caffeine and excessive iodine consumption. Graves' disease leads to a condition known as toxic goiter. Toxic goiter refers to the condition where the thyroid gland produces excess hormones and these hormones create a toxic effect in the body. Therefore, the disease is known among the public by this name. Graves' disease causes weight loss due to high metabolism, nervousness and anxiety, palpitations, and prominence of the eyes. In severe cases, it can lead to heart problems, osteoporosis, muscle weakness, visual disturbances, and even rarely vision loss. Since the metabolism speeds up during the active period of the disease, weight loss is observed. However, when the hormone level returns to normal with treatment, weight gain may occur, especially after radioactive iodine therapy or surgery. This condition stems from the slowing down of the metabolism. Individuals with suspected Graves' disease need to consult the endocrinology department. Endocrinologists specialize in thyroid diseases and determine the appropriate treatment plan to balance hormone levels. If there are problems related to the eyes, a referral to an ophthalmologist can also be made.

Graves' disease is a thyroid condition that can be brought under control with early diagnosis and the right treatment plan. If you are experiencing symptoms such as palpitations, rapid weight loss, nervousness, or prominence of the eyes, it is of great importance that you be evaluated by specialist physicians.

Hisar Hospital Intercontinental Endocrinology Department offers comprehensive healthcare services to its patients in the diagnosis and treatment of Graves' disease with advanced diagnostic methods and a multidisciplinary approach. To obtain information about treatment options tailored to you and to schedule an appointment, you can apply to our endocrinology department.