Thyroidectomy: preparing and recovering

Understanding the operation

Thyroidectomy is surgery to remove all or part of the thyroid gland. The extent depends on your situation:

• Total thyroidectomy - the whole gland is removed; often used for thyroid cancer, large goitres, or Graves' disease
• Hemithyroidectomy - one lobe is removed; often used for a nodule on one side
• Isthmusectomy - only the connecting strip is removed; used when a concern is confined to that area

Thyroid surgery is performed under general anaesthetic, usually through a small horizontal incision low in the neck. Most people stay in hospital for one or two nights.

Before your operation: questions to ask

Going in well-informed tends to make the whole experience less daunting. Some things worth asking your surgical team beforehand:

• How much of my thyroid will be removed, and why?
• Will I need levothyroxine after the operation, and when would that start?
• What are the main risks specific to my surgery, and how common are they?
• How will my calcium levels be monitored after the operation?
• Will I need radioactive iodine treatment after surgery, and what does that involve?
• When can I return to work, driving, and exercise?
• Is there anything I should stop taking before the operation (such as blood thinners or antithyroid drugs)?

The before your thyroidectomy guide has a more detailed preparation checklist, and the questions tool can help you keep track of what you want to ask.

What to pack and plan

For a one to two night stay, practical things to consider:

• Loose, comfortable clothing with open or wide necklines - nothing tight around the neck
• Nightwear that fastens at the front rather than over the head
• Something to prop you slightly upright in bed if you find lying flat uncomfortable
• Lip balm (mouth breathing under anaesthetic can cause dryness)
• Entertainment for a quiet recovery period - a phone charger, headphones, a book
• Any regular medications you take, in their original packaging with your name on them

Arrange for someone to drive you home. Most hospitals will not let you leave alone after a general anaesthetic.

Voice and swallowing sensitivity

The recurrent laryngeal nerve runs very close to the thyroid on both sides. This nerve controls the vocal cords, and temporary irritation during surgery can cause a hoarse or changed voice - this is one of the most common temporary effects of thyroid surgery.

For most people, any voice changes settle within a few weeks as swelling reduces. Permanent voice change is uncommon but does occur rarely. If you are a singer, teacher, voice professional, or anyone for whom your voice is particularly important, it is worth raising this specifically with your surgeon, who can discuss the individual risk in more detail.

Some people also notice temporary difficulty swallowing in the first few days - this usually improves as the neck heals. Mention any persistent or worsening difficulty to your team.

Calcium monitoring after surgery

Close behind the thyroid sit four tiny parathyroid glands, which regulate calcium levels in the body. These glands can occasionally be disturbed during thyroid surgery - even by a careful and experienced surgeon - causing a temporary drop in calcium levels.

Symptoms of low calcium include:

• Tingling or numbness around the lips, fingers, or toes
• Muscle cramps or spasms
• A feeling of pins and needles in the hands or feet

Hospitals routinely monitor calcium after thyroid surgery. Some people are sent home with calcium supplements as a precaution. If you develop any of the symptoms above after leaving hospital, contact your surgical team or go to A&E - low calcium after surgery is treatable but needs prompt attention.

In most cases any parathyroid disturbance is temporary, and calcium levels return to normal within weeks. Permanent hypoparathyroidism is uncommon, but your team will monitor this.

A note on urgent symptoms after surgery

Most thyroid surgery recoveries are smooth. However, seek emergency help immediately (call 999 or go to A&E) if you develop:

• Significant swelling or tightness in the neck
• Difficulty breathing
• Severe difficulty swallowing
• A sensation of choking that is worsening

These are not expected after-effects and need urgent assessment.

Recovery at home

Most people feel tired and sore for the first week or so. General pointers - though your team's specific guidance takes priority:

• Avoid heavy lifting and strenuous activity for a few weeks (ask your team for their specific advice)
• Driving is usually possible once you can turn your head freely and are off strong painkillers - confirm with your team
• Most people return to office or light work within one to two weeks; physical or manual work takes longer
• Keep the incision clean and dry as instructed; ask about scar massage once the wound has healed fully

Scar care

Thyroid surgery leaves a scar in the lower neck - usually in or near a natural skin crease to minimise visibility. Most scars fade well over time, though individual healing varies.

Once the wound is fully healed (typically two to four weeks), many surgeons recommend scar massage with a plain moisturiser to soften the tissue and reduce tightness. Ask your surgeon or nurse for their specific recommendation. If the scar becomes raised, thickened, or very itchy, mention it at your follow-up - there are options.

After a total thyroidectomy: levothyroxine for life

If your whole thyroid was removed, your body can no longer make its own thyroid hormone. Levothyroxine is usually started within the first day or two after surgery, though the timing can vary - for example, if radioactive iodine is planned, your team may adjust when it begins. Your dose will be adjusted based on blood tests over the following weeks.

For thyroid cancer patients, the dose may be set to keep TSH lower than normal - sometimes only mildly, sometimes fully suppressed, depending on your individual risk - to reduce stimulation of any residual cells. Your team will explain their target for you specifically.

Questions for your follow-up

• My voice still sounds different after several weeks - is this normal, and when should it have settled?
• My calcium has been low since surgery - what supplements do I need, and for how long?
• When should I have my first blood test after surgery?
• My scar seems thicker/itchier than expected - is there anything that helps?
• When will I know whether I need further treatment (such as radioactive iodine)?

The questions tool is there to help you keep track.