Healthdirect Free Australian health advice you can count on.

Medical problem? Call 1800 022 222. If you need urgent medical help, call triple zero immediately

healthdirect Australia is a free service where you can talk to a nurse or doctor who can help you know what to do.

beginning of content


6-minute read

Key facts

  • Goitre is an enlarged thyroid gland — your thyroid is the butterfly-shaped gland at the base of your neck.
  • Goitre can show as an obvious lump or swelling at the bottom of your neck. Goitres are usually painless but can feel sore or tender. A large goitre can make it hard to breathe or swallow.
  • Goitre can also affect the amount of thyroid hormone that you make.
  • There are several causes, and your treatment will depend on the cause of your goitre.

What is goitre?

Goitre is an enlarged thyroid gland. The thyroid gland is a butterfly-shaped gland at the base of your neck. It secretes thyroid hormones, which are needed for:

  • normal brain growth in children
  • controlling many aspects of your metabolism

Goitre is a sign that there is something wrong with your thyroid gland. It is more common in females than males.

What are the symptoms of goitre?

Goitre can show as an obvious lump or swelling at the bottom of your neck. Goitres are usually painless, but it can feel sore or tender around your thyroid area.

In some people, goitre causes no symptoms.

A large goitre can press on your windpipe or your oesophagus (food pipe, or 'gullet'). This can:

If you have goitre, you might also have too much thyroid hormone (hyperthyroidism) or too little thyroid hormone (hypothyroidism).

What causes goitre?

The main causes of goitre are:

Iodine is a mineral. Your body uses iodine to make thyroid hormones. In Australia, not having enough iodine is not that common. This is because iodine is added to most breads as iodised salt. But iodine deficiency can still occur. Breastfeeding and pregnant people have a greater need for iodine.

When should I see my doctor?

See a doctor if you see or feel a lump at the base of your neck, or if you have any of the other symptoms of goitre.

How is goitre diagnosed?

If you have goitre, your doctor will ask about your symptoms and examine you. They’ll look at your thyroid gland. They will feel its shape, size, and check for lumps.

You will have blood tests to see how well your thyroid gland is functioning. An ultrasound may be recommended to check the structure of your thyroid gland.

If you need more testing your doctor may order a:

You may also need a biopsy. This is when a doctor takes a sample of your thyroid gland. This sample is tested for disease.

How is goitre treated?

Your treatment will depend on the cause of your goitre.

If your goitre is small and your thyroid function is normal, you might not need treatment. This is often true during puberty and pregnancy.

If your goitre is due to your thyroid gland being overactive or underactive you will be given medicines.

If you have breathing or swallowing problems, you may need to have surgery.


You might be given medicine if your thyroid gland is producing either too much or too little thyroid hormone.

If you have painful swelling of your thyroid, your doctor may recommend pain relievers or corticosteroids.

Radiation or surgery

Radioactive iodine treatment (radioiodine) is another treatment choice. It’s usually given to people with thyroid cancer after they have had their thyroid gland removed. It can also be given to some people with Graves’ disease or nodules or lumps in the thyroid.

Radioactive iodine comes as a tablet. The radioactive iodine spreads through your body. It is absorbed only by your thyroid cells, killing them. It doesn’t affect your other (healthy) cells.

People with a large goitre that is causing difficulty breathing or swallowing might need surgery. People with nodules or lumps in the thyroid may also have surgery as part of their treatment.

Can goitre be prevented?

Only goitre caused by a lack of iodine in your diet can be prevented.

Iodine is in many foods, but the actual amount of iodine will vary. It depends on where the food is grown and how it is made.

Iodine occurs naturally in seawater and coastal soils. Oysters, sushi (with seaweed) and tinned salmon are all good sources of iodine. Eggs and milk also contain iodine.

In Australia, all bread contains iodised salt, except for organic bread. Eating bread regularly should help keep up your iodine levels. Ensure that any table salt you used is iodised salt.

Women who are pregnant, considering becoming pregnant or breastfeeding should take a 150 micrograms of iodine each day.

What are the complications of goitre?

A large goitre can make it hard to breathe or swallow. Goitres can also affect the amount of thyroid hormones that you make.

Resources and support

If you want to know more about goitre, talk to your doctor or call healthdirect on 1800 022 222 (known as NURSE-ON-CALL in Victoria). A registered nurse is available to speak to, 24 hours, 7 days a week.

Learn more here about the development and quality assurance of healthdirect content.

Last reviewed: September 2022

Back To Top

Need more information?

These trusted information partners have more on this topic.

Top results

Goitre | Health and wellbeing | Queensland Government

A goitre is an enlargement of the thyroid gland.

Read more on Queensland Health website

Goitre - Better Health Channel

Symptoms of a goitre can include enlargement of the throat, swallowing problems and breathing problems.

Read more on Better Health Channel website

The thyroid gland

Information on the thyroid gland and its function in regulating your body’s metabolism.

Read more on WA Health website

Thyroid gland and thyroid hormones -

Your thyroid gland makes hormones that control your metabolism. An overactive or underactive thyroid can cause symptoms.

Read more on myDr website

Hypothyroidism (underactive thyroid)

Hypothyroidism is a lifelong condition where your thyroid gland doesn’t make enough thyroid hormones.

Read more on WA Health website

Iodine -

Iodine is important for your thyroid gland, and iodine deficiency can cause problems, especially in unborn and newborn babies. Find out how to ensure your iodine intake is adequate.

Read more on myDr website

Thyroid - Hashimoto's disease - Better Health Channel

Hashimoto's disease progresses very slowly over many years, so the symptoms may go unnoticed.

Read more on Better Health Channel website

Hyperthyroidism (overactive thyroid)

Hyperthyroidism is a health condition where your thyroid becomes overactive and produces too many hormones. It is a serious health condition that is fatal if left undiagnosed or untreated.

Read more on WA Health website

Iodine - Better Health Channel

Good sources of iodine include fortified bread and any type of seafood, including seaweed.

Read more on Better Health Channel website

Hypothyroidism - Hormones Australia

Hypothyroidism is the most common thyroid disorder in Australia, affecting around 1 in 33 Australians. It is usually a permanent condition where the thyroid

Read more on Hormones Australia website

Healthdirect 24hr 7 days a week hotline

24 hour health advice you can count on

1800 022 222

Government Accredited with over 140 information partners

We are a government-funded service, providing quality, approved health information and advice

Australian Government, health department logo ACT Government logo New South Wales government, health department logo Northen Territory Government logo Queensland Government logo Government of South Australia, health department logo Tasmanian government logo Victorian government logo Government of Western Australia, health department logo

Healthdirect Australia acknowledges the Traditional Owners of Country throughout Australia and their continuing connection to land, sea and community. We pay our respects to the Traditional Owners and to Elders both past and present.