Thyroidectomy overview

Overview

A thyroidectomy is a surgery to remove part or all of your thyroid gland. The thyroid is a small, butterfly-shaped gland in your neck that makes hormones that control your body's energy use. This surgery is done to treat problems like thyroid cancer, a very large goiter (enlarged gland), or overactive thyroid that doesn't get better with medicine.

Yes, thyroidectomy is a common surgery. In the UK, thousands are performed each year for various thyroid conditions.

It affects both men and women, but women are 3-4 times more likely to have thyroid problems that lead to surgery. It can be done in adults of any age and rarely in children for specific conditions.

Symptoms

Common symptoms

• a lump or swelling in the front of your neck (goiter)
• trouble swallowing or a feeling of pressure in the throat
• rapid or irregular heartbeat, sweating, weight loss (from overactive thyroid)
• voice hoarseness or a chronic cough (if a large goiter presses on the voice box)

Symptoms in children

• a visible neck lump that may grow quickly
• signs of too much thyroid hormone – fast growth, irritability, trouble sleeping
• or very slow growth and fatigue if thyroid is underactive

Symptoms in older adults

• symptoms may be milder and mistaken for ageing, like tiredness, weight changes, or feeling cold
• an irregular heartbeat (atrial fibrillation) can be a sign of overactive thyroid
• a neck lump that causes swallowing or breathing problems

Causes

Main causes

• Thyroid cancer – the most common reason for total thyroidectomy.
• Large goiter – a non-cancerous enlargement that causes pressure on the windpipe or food pipe.
• Overactive thyroid (hyperthyroidism) that does not respond to medication or radioactive iodine.

Risk factors

• Family history of thyroid disease or thyroid cancer.
• Being female (much more common among women).
• Previous radiation to the neck area (e.g., for childhood cancer).
• Iodine deficiency (rare in UK but common in some parts of the world).

When to see a doctor

See a doctor urgently if:

• If you have trouble breathing or swallowing.
• If you notice a rapidly growing lump in your neck.
• If you have chest pain, a racing heart, or feel extremely anxious along with neck symptoms.

Book a routine appointment if:

• A painless lump in your neck that lasts for more than 2 weeks.
• Persistent tiredness, weight changes, or feeling too hot or cold.
• Voice hoarseness that does not go away after a cold.

Diagnosis

To decide if you need a thyroidectomy, your doctor will first check your neck and then do tests to look at your thyroid gland and its function.

Tests that may be done

• Blood tests – measure thyroid hormones (TSH, T3, T4) to see if your thyroid is overactive or underactive.
• Ultrasound – a painless scan that shows the size of your thyroid and any nodules or lumps.
• Fine needle aspiration biopsy – a thin needle draws cells from a nodule to check for cancer.
• Sometimes a thyroid scan (nuclear medicine test) is used to see how active the thyroid is.

What to expect at your appointment

Your doctor will explain the results and whether surgery is needed. If yes, they will refer you to a surgeon who specialises in thyroid operations. You'll have a chance to ask questions before the operation.

Treatment

Thyroidectomy is the main treatment when the thyroid gland must be removed. The surgery can be partial (removing half) or total (removing whole gland). It is done under general anaesthesia (you are asleep) and usually takes 1-3 hours.

Self-care at home

• Before surgery, follow your surgeon's instructions about eating, drinking, and taking your usual medicines.
• After surgery, rest and avoid heavy lifting for a few weeks.
• Keep the incision (cut) clean and dry. Watch for signs of infection like redness or pus.

Medical treatments

Before surgery, your doctor may give you medicines that block thyroid hormone production (antithyroid drugs) if you have overactive thyroid. This is to lower your risk during surgery. After total thyroidectomy, you will need thyroid hormone replacement pills for life to keep your body's energy levels normal.

When is surgery considered?

Surgery is recommended when: a lump is found to be cancer or likely cancer, a goiter causes pressure symptoms, or hyperthyroidism cannot be controlled with medication (or the person cannot tolerate the drugs).

Living with this condition

After recovery from surgery (usually 2-4 weeks), most people return to normal activities. If your whole thyroid was removed, you will take a daily pill (thyroid hormone) and have regular blood tests to check your levels. You can travel, work, and exercise normally.

Lifestyle tips

• Take your thyroid hormone pill at the same time each day, usually on an empty stomach.
• Avoid taking calcium or iron supplements at the same time as your thyroid pill – wait at least 4 hours.
• Wear a scarf or necklace to protect your scar from the sun for the first year so it fades better.

Diet and exercise

You can eat a normal healthy diet. After surgery, some people need to temporarily avoid foods high in iodine (like seaweed) if they had a partial removal, but ask your doctor. Light exercise like walking is fine after a few weeks; heavy exercise can wait 4-6 weeks.

Mental health and emotional wellbeing

It is normal to feel anxious about surgery and about taking medicine for life. Some people also worry about their scar. These feelings often improve with time. If you feel very down or worried, talk to your doctor – you are not alone.

Prevention

Some thyroid problems can be prevented by getting enough iodine in your diet (using iodised salt, eating fish and dairy). But thyroid cancer and autoimmune thyroid diseases often have no known prevention. Surgery itself is not preventable once the condition requires it.

Vaccines

There is no vaccine that prevents thyroid problems or the need for thyroidectomy.

Screening programmes

Routine screening for thyroid disease is not recommended for everyone. However, if you have a strong family history of thyroid cancer or have had radiation to your neck, your doctor may suggest regular neck checks or ultrasound.

Complications

If left untreated

• Thyroid cancer can grow and spread, becoming harder to treat.
• A large goiter can press on the windpipe, causing breathing problems.
• Uncontrolled overactive thyroid can lead to serious heart problems or a life-threatening thyroid storm.

Long-term outlook

The outlook after thyroidectomy is very good. Most people recover fully and live normal, healthy lives with daily thyroid hormone pills. For thyroid cancer, surgery often cures it. Your healthcare team will help you manage any changes and support you every step of the way.

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