Parathyroid surgery (Parathyroidectomy)
An operation to remove one or more overactive parathyroid glands in the neck, most often to treat primary hyperparathyroidism, which raises the level of calcium in the blood.
✓ Medically reviewed by a GMC-registered consultant · last reviewed September 2026 · next review September 2027 · how we review
In short
- It removes one or more overactive parathyroid glands, most often to cure primary hyperparathyroidism (high blood calcium).
- Scans beforehand help locate the faulty gland, which decides whether a small focused operation or a fuller neck exploration is needed.
- Cure rates are high in experienced hands, but the calcium may not normalise if a gland is missed, and surgery does not undo all damage high calcium has already caused.
- Like thyroid surgery, the main specific risks are voice change and low calcium, and surgeon experience matters.
A plain-English summary. The detail — including risks and recovery — is below.
At a glance
A general guide. Your surgeon will give you advice for your situation.
Can cure primary hyperparathyroidism by removing the overactive gland
Mild primary hyperparathyroidism without symptoms or end-organ effects, where monitoring may be advised instead.
Calcium is checked, and you are watched for neck swelling and breathing problems. Calcium tablets are given if levels dip. Many people go home the same...
Early calcium checks with clear instructions on low-calcium symptoms.
Calcium is checked, and you are watched for neck swelling and breathing problems. Calcium tablets are given if...
Neck soreness and a tired voice are common and usually settle. Manage at home with simple pain relief and any...
Many return to light work and normal activities. The wound is healing; stitches or clips, if used, are removed or...
Blood tests confirm that calcium and PTH have settled to normal, confirming cure. Calcium tablets are reduced as...
What is parathyroid surgery?
The parathyroid glands are four tiny glands in the neck, near the thyroid, that control the level of calcium in the blood. In primary hyperparathyroidism, one (or occasionally more) becomes overactive and makes too much parathyroid hormone (PTH), pushing calcium too high.
High calcium can cause tiredness, low mood, thirst, kidney stones, bone thinning and other problems, though some people have few or no symptoms. Surgery to remove the overactive gland (parathyroidectomy) is the only treatment that can cure primary hyperparathyroidism.
Before surgery, scans are usually done to locate the overactive gland. If it can be pinpointed, the surgeon may do a small, focused operation on one side; if not, both sides of the neck are explored. The aim is to find and remove the faulty gland while leaving enough healthy parathyroid tissue to keep calcium normal.
Surgery treats the calcium problem itself. It does not necessarily reverse all the effects high calcium may already have caused, such as established kidney stones.
Types & techniques
There isn't one single operation. The right approach depends on you — which is something to discuss with your surgeon.
Focused operation vs full neck exploration
| Focused | Both sides explored | |
|---|---|---|
| When used | Scans show one clear gland | Gland not localised / several glands |
| Cut | Smaller | Larger |
| Stay | Often day case | Day case or one night |
| Glands checked | Mainly the target gland | All four assessed |
The approach depends on what scans show beforehand; sometimes a focused plan changes to a full exploration during surgery.
Preparing for your surgery
- Have the diagnosis confirmed with blood tests (calcium and PTH) and locating scans (such as ultrasound and a sestamibi or 4D-CT scan).
- Ask whether a focused operation or a full neck exploration is planned, and what happens if the gland is not found where expected.
- Tell the team about all medicines, especially blood thinners and any calcium or vitamin D supplements.
- Mention previous neck surgery or radiotherapy and any existing voice or swallowing problems.
- You will be told when to stop eating and drinking before a general anaesthetic, and you will need someone to take you home.
- Ask how your calcium will be checked afterwards and whether you may need calcium tablets.
- Discuss what cure means here and how it will be confirmed over the following weeks.
What happens
Most parathyroid surgery is done under general anaesthetic, though a focused operation is sometimes done under local anaesthetic with sedation. The surgeon makes a cut in the front of the neck, often small for a focused operation.
Using the scan information, the surgeon finds and removes the overactive gland (or glands), working carefully around the nerves to the voice box. Some teams measure PTH in the blood during the operation: a sharp fall after the gland is removed helps confirm the right one has been taken out. The wound is then closed.
The operation can take from about half an hour to a couple of hours. Afterwards your calcium is checked, and many people go home the same day or after one night.
Is this operation right for me?
A good consultation should explore whether it's the right choice for you now — including reasons to wait or consider something else.
May not be suitable if…
- Mild primary hyperparathyroidism without symptoms or end-organ effects, where monitoring may be advised instead.
- A diagnosis that has not been clearly confirmed with calcium and PTH testing.
- Someone whose general health makes a general anaesthetic too risky relative to the benefit.
- High calcium from a cause other than the parathyroids, where surgery would not help.
Delay surgery if…
- The diagnosis or the location of the gland is not yet confirmed.
- There is active infection or another acute illness.
- Calcium is dangerously high and needs medical stabilising first.
- Blood-thinning medication needs reviewing or adjusting.
- You cannot arrange the support and monitoring needed in the first day or two after surgery.
Alternatives to discuss
- Active monitoring of calcium, kidney and bone health in mild cases.
- Medicines (such as cinacalcet) to lower calcium when surgery is not suitable.
- Treating bone thinning with bone-protecting medicines and good vitamin D.
- Staying well hydrated and reviewing medicines that affect calcium.
- Referral for re-imaging and specialist review rather than rushing to operate if the gland is not located.
Before you decide
Use this as a shared-decision checklist. The aim is not just “can this be done?”, but whether it is right for you, now, with the risks and alternatives clearly understood.
What matters most to me?
Think about symptoms, daily life, work, caring responsibilities, sport, fertility, travel, appearance and anxiety — the right choice depends on your priorities, not just the medical facts.
What are all my options?
Ask about waiting, monitoring, medicines, rehabilitation, a smaller or larger procedure, a different test, NHS referral, or a second opinion where that would help.
What would make me pause?
Active infection, pregnancy, unstable medical problems, smoking, medicines that increase bleeding, poor support at home, or feeling pressured are all reasons to slow down and get tailored advice.
What happens if I do nothing today?
For some problems, waiting is safe; for others, delay can make treatment harder. A good consultation should explain the trade-off in plain English.
Anaesthetic choices
The safest option depends on the operation, your health, the facility and your surgeon/anaesthetist. Ask what is planned and why.
Benefits
- Can cure primary hyperparathyroidism by removing the overactive gland
- Brings blood calcium back to normal in most people
- Can ease symptoms such as thirst, tiredness and low mood when these were due to high calcium
- May reduce the risk of further kidney stones and ongoing bone loss
- Provides a definite diagnosis from examining the removed gland
Risks & complications
- A neck scar (usually settles to a fine line in a skin crease)
- Temporary low calcium causing tingling in the fingers or around the mouth
- Temporary voice change, hoarseness or a tired voice
- Neck soreness, stiffness or a tight feeling on swallowing
- Calcium that stays high because the overactive gland was not found (persistent disease)
- A collection of blood in the neck (haematoma)
- Wound infection
- Longer-lasting low calcium needing treatment
- Permanent damage to the nerve to the voice box, affecting the voice or, if both sides, breathing
- Permanent low calcium (hypoparathyroidism) needing lifelong calcium and vitamin D
- Serious airway problems from bleeding or both voice nerves being affected
- Anaesthetic complications
As with thyroid surgery, the main specific risks are voice change (from the nerve nearby) and low calcium. A particular issue for parathyroid surgery is that the operation may not cure the problem if the faulty gland is not found, which is why good scans beforehand and an experienced surgeon matter. A neck swelling with breathing difficulty after surgery is an emergency. Ask your surgeon about their cure rate and complication rate.
Published figures to discuss
Parathyroid surgery has a high cure rate for primary hyperparathyroidism in experienced hands, but success depends on accurately finding the overactive gland, which is why pre-operative scans and surgeon experience matter. The main specific complications — voice-nerve injury and low calcium — overlap with thyroid surgery. Reported figures vary with the type of operation (focused versus exploration), the underlying disease and the surgeon, so several are best given cautiously rather than as precise numbers.
| Figure | Reported range | How to interpret it | Source / confidence |
|---|---|---|---|
| Cure of primary hyperparathyroidism | High — commonly reported around 95–98% in specialist series | Depends on accurate localisation and an experienced surgeon; lower for re-do surgery. | Surgical management of primary hyperparathyroidism (cure and complication data) — PMCpmc.ncbi.nlm.nih.govPublished figure |
| Persistent high calcium (gland not found) | Low — roughly the complement of the cure rate (a few per cent in specialist series) | May require re-imaging and, sometimes, a further operation. | Surgical management of primary hyperparathyroidism (cure and complication data) — PMCpmc.ncbi.nlm.nih.govPublished figure |
| Temporary low calcium | Common in the days after surgery; usually mild, short-lived and treated with tablets | More likely after surgery on several glands; usually settles. | Guide sourcesClinical context |
| Permanent low calcium / voice-nerve injury | Uncommon; permanent voice-nerve injury or permanent low calcium is generally around 1% or lower in specialist series, higher in re-do surgery | Less likely with high-volume surgeons; higher in re-do operations. Ask your surgeon for their figures. | Surgical management of primary hyperparathyroidism (cure and complication data) — PMCpmc.ncbi.nlm.nih.govPublished figure |
These are literature figures, not a personalised prediction. Your own risks and likely benefits depend on your circumstances, your health, and how your care is carried out and followed up.
Recovery — what to expect, and when
Recovery from parathyroid surgery, especially a focused operation, is often quick. The early focus is on watching calcium and the voice; after that it is mostly wound care and getting back to normal, while cure is confirmed with blood tests over the following weeks.
- Tingling in the fingers or around the mouth if calcium dips, settling with treatment
- A sore, stiff neck and a tight feeling on swallowing for a week or two
- A tired or slightly husky voice that usually improves
- A red, firm scar that gradually fades over months
- Feeling better in energy or mood over weeks if high calcium had caused symptoms
Aftercare
- Take any prescribed calcium and vitamin D exactly as directed, and reduce only on advice.
- Watch for and report tingling, cramps or twitching, which can mean low calcium.
- Attend blood tests to confirm calcium and PTH have normalised.
- Keep the wound clean and dry, and follow advice on showering and scar care.
- Rest your voice if it tires, and avoid heavy lifting and straining early on.
- Protect the healing scar from the sun while it matures.
- Know the urgent signs — a swelling neck or difficulty breathing needs emergency help.
- Any prescribed calcium and vitamin D collected
- Blood-test follow-up appointments noted
- Someone to drive you home and help for the first day or two
- Simple pain relief such as paracetamol at home
- A way to keep the wound dry when washing
- Knowledge of low-calcium symptoms to watch for
- Emergency and clinic contact numbers saved
Scars and how they heal
The cut is usually placed in the front of the neck, often in a natural skin crease, and a focused operation leaves a smaller scar. It is red or firm at first and fades over many months to a discreet line. Healing varies between people, and some are prone to thicker or stretched scars. Protecting the scar from the sun while it matures helps it settle.
⚠ Get urgent help if…
- A swelling in the neck with difficulty breathing — call emergency services immediately
- Sudden difficulty breathing or noisy breathing (stridor)
- Strong tingling, numbness, cramps or muscle twitching (signs of low calcium)
- Spreading redness, heat, swelling or pus at the wound (infection)
- Bleeding that is increasing or a rapidly enlarging neck swelling
- A high temperature or feeling very unwell
- A voice that is getting worse rather than better, or trouble swallowing fluids
Who to contact: your surgeon or clinic first (keep their number to hand). For urgent advice when you can't reach them, call NHS 111. In an emergency, call 999.
General guidance — it doesn't replace the specific advice your surgeon gives you.
Results & realistic expectations
A successful operation brings calcium and PTH back to normal, which is usually confirmed with blood tests in the weeks after surgery. The removed gland is examined in the laboratory to confirm it was the cause. Symptoms that were due to high calcium, such as thirst and tiredness, often improve.
Surgery cures the calcium problem but cannot always undo damage already done, such as existing kidney stones or bone thinning, which may need separate management. Occasionally calcium stays high because the faulty gland was not found, and further imaging and sometimes another operation are needed.
When the right gland is removed, primary hyperparathyroidism is usually cured for good and most people need no further treatment, though follow-up blood tests check calcium stays normal. Rarely the problem returns or another gland becomes overactive later, particularly in inherited forms, so long-term monitoring may be advised in selected people.
Combining with other procedures
Parathyroid surgery is sometimes done at the same time as thyroid surgery if there is also a thyroid problem. Around the operation, attention is also paid to bone health and kidney stones, which may need their own treatment and monitoring.
Follow-up & long-term care
You will have blood tests after surgery to confirm calcium and PTH have normalised, plus a wound check. If you were started on calcium tablets, these are reduced as advised. Bone density and kidney follow-up may be arranged if high calcium had affected them.
- Short-term calcium and vitamin D tablets if calcium dips after surgery, reduced on advice
- Follow-up blood tests to confirm and monitor a cure
- Bone-health and kidney-stone monitoring if these were affected
- Longer-term surveillance in inherited forms or after subtotal surgery
Revision and secondary surgery reality
- If calcium stays high because the faulty gland was missed, re-imaging and sometimes a second, more complex operation are needed.
- Re-do parathyroid surgery carries higher risks of voice-nerve and calcium problems.
- In disease affecting several glands, the problem can return over time and may need further treatment.
- Calcium tablets started after surgery are usually reduced over weeks as the remaining glands recover.
Ask your surgeon for their own revision rate, what counts as a revision, and what is included in the written aftercare policy.
What good aftercare looks like
- Early calcium checks with clear instructions on low-calcium symptoms.
- A blood-test plan to confirm cure and a clear definition of what cure means.
- Clear written emergency advice for a swelling neck or breathing difficulty.
- A named contact and easy access for wound, voice or calcium concerns.
- Onward bone-health and kidney follow-up where high calcium had caused damage.
What affects the cost
Costs vary a great deal between people and providers, and we don't publish prices. What matters is understanding what drives the cost and making sure your quote is complete. The main things that affect it:
- Consultation, blood tests and locating scans (ultrasound, sestamibi or 4D-CT) beforehand
- Whether a focused operation or a full neck exploration is needed
- Whether PTH is measured during the operation
- The surgeon's fee, anaesthetist's fee and theatre or facility fee
- Length of hospital stay (day case versus overnight)
- Laboratory examination of the removed gland
- Blood tests and follow-up to confirm cure and monitor calcium
- The surgeon's and anaesthetist's fees
- The cost of locating scans and any in-theatre PTH testing
- The theatre or facility fee and expected length of stay
- Laboratory (pathology) cost for the removed gland
- Follow-up consultations and blood tests to confirm cure
- What is included if calcium stays high and a further operation is needed
- The policy if a complication such as bleeding or low calcium occurs
On the NHS? Parathyroid surgery is available on the NHS when clinically indicated, for example for high calcium, kidney stones or bone thinning from primary hyperparathyroidism; private access may be used for speed or choice.
You're entitled to your total cost in writing — including aftercare and any revision — before you decide.
Consent traps and marketing red flags
These are not small details. They are often where patients lose choice, time to reflect, or realistic expectations.
Consent traps
- Not explaining that surgery may not cure the problem if the gland is not found.
- Not discussing the voice-nerve and low-calcium risks and that they can occasionally be permanent.
- No discussion of monitoring or medicine as alternatives in mild disease.
- Implying surgery will reverse damage (such as kidney stones) that may need separate treatment.
- No clear emergency plan for a swelling neck or breathing difficulty after discharge.
Marketing red flags
- Guaranteeing a cure or promising calcium will definitely normalise.
- Promising no voice change or no low calcium.
- Promoting a focused or "minimally invasive" operation without honest discussion of when a full exploration is needed.
- Not mentioning surgeon volume or cure rates.
- Downplaying the chance of a missed gland or the need for re-do surgery.
Choosing a surgeon safely
- Check your surgeon is on the GMC Specialist Register for this area.
- Make sure they practise at a CQC-registered location, and look for membership of bodies like BAAPS or BAPRAS.
- You're entitled to a two-stage consent process with time to reflect (a cooling-off period). The surgeon who will operate must consent you — not a salesperson.
- Be wary of pressure: time-limited offers, discounts or deposits taken before you've had time to think are red flags, not bargains.
- You're entitled to your total cost in writing — including aftercare and any revision — before you decide.
Questions to ask your medical professional
Take this to your consultation. A good surgeon will welcome every one of these.
- Have my scans located the overactive gland, and will I have a focused operation or a full exploration?
- What is your cure rate, and what happens if calcium stays high afterwards?
- How will you protect the nerves to my voice?
- Will I need calcium tablets afterwards, and for how long?
- Do I definitely need surgery now, or could monitoring be reasonable for me?
- What are the urgent warning signs I should act on after I go home?
- Are you on the GMC Specialist Register for this area, and which Royal College or professional body are you a member of?
- Will you be the surgeon who carries out my operation, and who looks after me afterwards?
- What are the risks for someone like me, and how often do your own patients have a problem or need it repeated or redone?
- What does a realistic result look like — and what can this operation not achieve?
- What are my options, including waiting, doing nothing for now, or choosing a different approach?
- Can I have written information, results and aftercare instructions in a format I can use, including any accessibility or communication support I need?
- What is the total cost in writing, including any follow-ups, and how much time do I have to decide?
Frequently asked questions
Will the operation cure my high calcium?
Why do I need scans before surgery?
What is the low-calcium problem afterwards?
Will it affect my voice?
Do I really need surgery if I feel well?
Is it available on the NHS?
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How we made this page
Medically reviewed by a GMC-registered consultant. Written in plain English, checked against NHS, NICE, GMC and relevant Royal College / specialist-society guidance, and kept under review. No clinic paid to appear on this page, and we publish no pricing. This is general information to help you prepare — it is not a substitute for advice from your own clinician. How we review our guides →
Source hierarchy: UK regulator and NHS/NICE guidance first, then relevant Royal College or specialist-society guidance, then peer-reviewed evidence for procedure-specific figures where available.
Sources & standards: NICE NG132 — Hyperparathyroidism (primary): diagnosis, assessment and initial management British Association of Endocrine and Thyroid Surgeons (BAETS) — patient information Society for Endocrinology / You and Your Hormones — parathyroid glands Parathyroid UK — about parathyroid surgery NHS — Hyperparathyroidism Surgical management of primary hyperparathyroidism (cure and complication data) — PMC
Reviews reflect patients' experience of care, not clinical outcomes. For procedure volumes and outcome data see PHIN.
Last medically reviewed 2026-09-21. Spotted something wrong or out of date? Report an error in this guide.
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