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Sub-total thyroidectomy (for thyrotoxicosis)

3-minute read

This page will give you information about a sub-total thyroidectomy. If you have any questions, you should ask your GP or other relevant health professional.

You can also download and print a PDF version of this factsheet, with space for your own questions or notes.

What is the thyroid gland?

The thyroid gland is a structure in your neck that produces a hormone called thyroxine, which regulates your body's metabolism. Sometimes this gland can become overactive. This is called thyrotoxicosis and can cause symptoms such as losing weight, sweatiness and eye problems.

What are the benefits of surgery?

The amount of thyroid hormones the gland produces should reduce to normal or low levels. You should no longer have any distressing symptoms.

Are there any alternatives to surgery?

Medication, such as carbimazole or propylthiouracil, can be used to control thyroid activity.

Radioactive iodine can also be used for some people.

Illustration showing an sub-total thyroidectomy for thyrotoxicosis.
Sub-total thyroidectomy for thyrotoxicosis.

What does the operation involve?

The operation is performed under a general anaesthetic and usually takes 90 minutes to 2 hours.

Your surgeon will make a cut on your neck in the line of one of your skin creases and remove most of the thyroid gland.

What complications can happen?

General complications

  • pain
  • infection of the surgical site (wound)
  • unsightly scarring
  • blood clots

Specific complications

  • bleeding
  • change in your voice
  • drop in calcium levels
  • breathing difficulties
  • drop in thyroid hormone levels
  • increase in thyroid hormone levels

How soon will I recover?

You should be able to go home after 1 to 2 days.

You should be able to return to work and normal activities after about 2 weeks.

Regular exercise should help you to return to normal activities as soon as possible. Before you start exercising, ask the healthcare team or your GP for advice.

The healthcare team will usually arrange for you to come back to the clinic. Your surgeon will discuss with you any treatment or follow-up you need.

Summary

Thyrotoxicosis is a condition caused by an overactive thyroid gland. A thyroidectomy to remove most of the gland is one of a number of ways thyrotoxicosis can be treated.

IMPORTANT INFORMATION
The operation and treatment information on this page is published under license by Healthdirect Australia from EIDO Healthcare Australia and is protected by copyright laws. Other than for your personal, non-commercial use, you may not copy, print out, download or otherwise reproduce any of the information. The information should not replace advice that your relevant health professional would give you.

For more on how this information was prepared, click here.

Last reviewed: September 2018

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