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.

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.

Your thyroid gland has become overactive and is producing too much thyroxine. This is called thyrotoxicosis and can lead to some distressing symptoms such as losing weight, tremors, sweatiness, being unable to cope with heat, difficulty sleeping 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 and are often used to begin with. However, these have side effects and for some people should not be used.

Radioactive iodine can also be used for some people.

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.

Your surgeon will remove most of the thyroid gland.

What complications can happen?

Some complications can be serious and can even cause death.

General complications of any operation

• pain
• infection of the surgical site (wound)
• unsightly scarring of your skin
• blood clot in your leg
• blood clot in your lung

Specific complications of this operation

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

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, depending on how much surgery you need and your type of work.

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.

Most people make a full recovery and can return to normal activities.

The healthcare team will usually arrange for you to come back to the clinic within 4 weeks. Your surgeon will tell you the results and 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.

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