Thyroid gland

Your thyroid gland sits in the front of your neck and helps control your metabolism. Read about the different thyroid hormones and thyroid problems.

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Thyroid medicines

Thyroid medicines treat thyroid disorders, including hypothyroidism and hyperthyroidism. Read about how they work and their potential side effects.

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Thyroidectomy

A thyroidectomy is the removal of part or all of your thyroid gland. It’s used to treat an enlarged or overactive thyroid gland or thyroid cancer.

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Hyperthyroidism

Hyperthyroidism (or thyrotoxicosis) occurs when the thyroid gland is overactive and produces too much thyroid hormone.

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Endocrine glands and their hormones

Find out more about the endocrine glands and hormones in your body, such as the pituitary gland, thyroid gland and adrenal glands.

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Goitre

Goitre is a swelling at the base of your neck. It's caused by an enlarged thyroid gland. Find out more about causes, symptoms and treatments here.

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Graves' disease

In this autoimmune condition, the thyroid gland in the neck produces too much thyroid hormone that can cause tremor, anxiety, a racing heart, goitre and bulging eyes.

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Hypothyroidism

Hypothyroidism (underactive thyroid) is when thyroid gland doesn't make enough thyroid hormone. See symptoms, diagnosis and treatment options here.

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Thyroidectomy for suspected cancer (nodule)

A thyroid lump can be caused by cancer. A thyroidectomy involves removing all or part of your thyroid gland. This gives you the best chance of being free of cancer, and helps your surgeon to decide if you need any further treatment.

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Thyroid function tests

A thyroid function blood test is used to check your thyroid stimulating hormone (TSH), thyroxine (T4), and triiodothyronine (T3) blood levels.

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Total thyroidectomy (for thyrotoxicosis)

The thyroid is a gland in your neck that produces a hormone called thyroxine, which regulates your body's metabolism. The thyroid can become overactive, causing weight loss, sweatiness and eye problems.

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Hashimoto's disease

Hashimoto's disease can cause your body to produce too little thyroid hormone. Find out more about its causes, symptoms and treatment.

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Thyroid problems

If your thyroid becomes overactive (hyperthyroidism) or underactive (hypothyroidism), you may experience a range of health problems — learn more here.

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Thyroid cancer

Thyroid cancer is treatable in most cases. Learn about its development, symptoms, when to consult a doctor, and available treatments.

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Iodine deficiency

Iodine deficiency is the most common cause of thyroid disease. Learn about the causes and how to ensure you are getting enough iodine.

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Iodine and your health

Iodine is essential for your cells to make proteins, and to build your bones and nerves. Learn about how to get enough iodine in your diet.

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Hormonal system

The endocrine (hormonal) system influences your metabolism, growth and other functions. Learn more about what it is and related conditions.

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Foods high in iodine

Foods high in iodine include fish, prawns and seafood, as well as iodised salt and packaged bread. Here's how to get enough iodine in your diet.

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Pituitary gland and hormones

Your pituitary gland is found in your brain and is considered your body’s ‘master gland’. Learn more about the role of your pituitary gland here.

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Lithium

Lithium is a medicine used to treat bipolar disorder and some other mental illnesses. Find out about how lithium works and what you need to know.

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Tachycardia

Tachycardia (if your heart beats faster than usual, more than 100 beats per minute) can be a normal response to exercise or stress or a sign of disease

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The role of an endocrinologist

Endocrinologists are specialists who treat hormone-related conditions. Learn how to find one and important questions to ask before your appointment.

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Parathyroid glands

Your parathyroid glands are small glands that are found in your neck and make parathyroid hormone (PTH). Find out more about PTH here.

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Ultrasound

An ultrasound scan creates a real-time picture of the inside of the body using sound waves. Learn about uses, types, and preparation for ultrasounds.

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Autoimmune diseases — an overview

Autoimmune diseases occur when your immune system attacks your own body. Learn more about the diagnosis and treatment of these diseases.

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Parathyroidectomy

Parathyroid glands can become overactive, causing an increase in the level of calcium in your blood. Surgery to remove any affected glands is the only reliable way to prevent long-term problems.

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Atrial fibrillation

Atrial fibrillation (AF or Afib) is a heart rhythm problem that can increase your risk of stroke. Find out about the symptoms and treatment for AFib.

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Erectile dysfunction

Erectile dysfunction, or impotence, means problems getting or keeping an erection to have for intercourse. Learn more about causes and treatment.

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Vitamins and minerals explained

Vitamins and minerals are necessary for the healthy functioning of our bodies. A balanced diet with a variety of foods will meet most of your needs.

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Coeliac disease

People with coeliac disease can't eat foods containing gluten. Find out how coeliac disease can affect your life and why it's important to get diagnosed.

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