Axillary lymph node clearance (axillary lymph node dissection (axillary clearance))

An operation to remove most of the lymph nodes from the armpit, usually because breast cancer has spread to them, which helps treat the cancer and plan further treatment.

✓ Medically reviewed by a GMC-registered consultant · last reviewed September 2026 · next review September 2027 · how we review

In short

Axillary clearance removes most of the armpit lymph nodes, usually because breast cancer has spread there, and helps stage the cancer and plan treatment.
The main long-term risk is lymphoedema — arm or hand swelling that can be permanent — which is higher than after a sentinel node biopsy and higher again with radiotherapy.
It is a bigger operation than sentinel node biopsy; in some cases teams now avoid full clearance and use radiotherapy or monitoring instead.
Ask how many nodes are likely to be removed, what your lymphoedema risk is, and how to spot and get early treatment for arm swelling.

A plain-English summary. The detail — including risks and recovery — is below.

At a glance

TypeLymph node operation (often with breast surgery)

AnaestheticUsually general anaesthetic

How long it takesOften around 1–2 hours, longer if combined with breast surgery

Hospital stayDay case or one or more nights, sometimes with a drain

Time off workOften a few weeks

When you'll see resultsFull pathology results usually take 1–2 weeks

On the NHS?A core part of NHS breast cancer treatment; private access may be used for speed or choice

A general guide. Your surgeon will give you advice for your situation.

Best fit

Removes lymph nodes affected by cancer from the armpit

Pause if

When a sentinel node biopsy alone is enough, or when radiotherapy to the armpit is a reasonable alternative to clearance.

Main recovery point

The armpit is sore and a drain may be in place. Gentle arm and shoulder movements are encouraged, avoiding heavy lifting. You may go home with the drain.

Good aftercare

Clear advice on arm and shoulder exercises and skin care to reduce lymphoedema risk.

First few days

The armpit is sore and a drain may be in place. Gentle arm and shoulder movements are encouraged, avoiding heavy...

First 1–2 weeks

Any drain is usually removed, though a seroma may form and need draining in clinic. You are told your pathology...

Weeks 2–6

Shoulder movement improves with exercises. Most people return to many normal activities, building up gradually...

6 weeks and beyond

Movement usually returns to near normal. Be alert for arm swelling, which can appear later, and continue exercises...

Medical line illustration of breast lymphatic drainage for Axillary lymph node clearance. — Illustration only - not a diagnosis, medical advice or a promise of result. Your anatomy and treatment plan may differ. Vuemedics does not publish before-and-after photos.

What is axillary lymph node clearance?

Axillary lymph node clearance is an operation to remove most or all of the lymph nodes from the armpit (the axilla). It is usually done because breast cancer has been found in the armpit nodes, or is very likely to have spread there.

Lymph nodes are small glands that filter fluid and are often the first place breast cancer spreads to. Removing them helps treat that spread and lets the pathologist see how many nodes are affected, which is important for staging the cancer and planning further treatment such as radiotherapy, chemotherapy or hormone treatment.

It is a bigger operation on the armpit than a sentinel lymph node biopsy, which only samples one or a few nodes. Increasingly, where only one or two sentinel nodes contain cancer, teams may avoid a full clearance and use radiotherapy or close monitoring instead, because clearance carries a meaningfully higher risk of long-term arm swelling.

The main long-term concern is lymphoedema — swelling of the arm or hand that can be permanent. The chance is higher than after sentinel node biopsy, and higher again if radiotherapy is also given to the armpit.

Types & techniques

There isn't one single operation. The right approach depends on you — which is something to discuss with your surgeon.

Axillary clearance with breast surgery

Done at the same time as a lumpectomy or mastectomy when nodes are known to contain cancer, removing the breast cancer and the affected armpit nodes together.

Completion axillary clearance

A second, separate operation done after a sentinel node biopsy shows cancer in the nodes, usually a week or two after the results.

Axillary clearance after treatment first

Sometimes done after chemotherapy or hormone treatment given before surgery, to remove any remaining affected nodes and assess the response.

Sentinel node biopsy (a smaller alternative)

Not a clearance, but the usual first step: it samples one or a few 'first' nodes. If clear, a full clearance is often avoided, with a much lower risk of arm swelling.

Axillary clearance vs sentinel lymph node biopsy

Point	Axillary clearance	Sentinel node biopsy
Nodes removed	Most armpit nodes	One or a few nodes
Main use	Cancer known in nodes	Checking if cancer has spread
Arm swelling risk	Higher (often around 1 in 5)	Lower (low single figures)
Recovery	Usually longer, drain often used	Usually quicker
Seroma / shoulder issues	More common	Less common

Figures vary between studies and rise if radiotherapy is also given to the armpit. Your team will explain your own risk.

Preparing for your surgery

Make sure you understand why a clearance is recommended rather than a sentinel node biopsy alone.
Ask roughly how many nodes are likely to be removed and what your personal risk of lymphoedema is.
Ask whether radiotherapy to the armpit is also planned, as this adds to the swelling risk.
Tell the team about all medicines and supplements, especially blood thinners, and follow fasting instructions.
Stop smoking as early as you can to help wound healing.
Plan for a drain possibly going home with you, and learn how to look after it.
Arrange time off, help at home and a lift, as you should not drive after a general anaesthetic.

What happens

Axillary clearance is usually done under general anaesthetic, often at the same time as breast surgery. The surgeon makes a cut in the armpit (or uses the breast wound) and removes the fatty tissue containing the lymph nodes, taking care around the nerves and blood vessels that supply the arm.

The removed tissue is sent to the laboratory, where the pathologist counts how many nodes there are and how many contain cancer. A thin drain is often left in the armpit to remove fluid, and this may stay in for several days, sometimes going home with you.

You may go home the same day or stay one or more nights, depending on the rest of your surgery. You will be shown arm and shoulder exercises to start gently afterwards.

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…

When a sentinel node biopsy alone is enough, or when radiotherapy to the armpit is a reasonable alternative to clearance.
When the armpit nodes are clear, so a full clearance would add risk without benefit.
Very frail patients, or those for whom a general anaesthetic is unsafe, may need a modified plan.
When cancer is widespread and the focus is on other (systemic) treatments rather than armpit surgery.

Delay surgery if…

There is an active infection or an unmanaged health problem that makes anaesthetic unsafe.
Key results or the multidisciplinary team plan are not yet complete.
Treatment before surgery (such as chemotherapy) is recommended first.
Blood-thinning or other medicines need adjusting and cannot yet be safely managed.
You do not feel you have had enough information about the lymphoedema risk to consent.

Alternatives to discuss

Sentinel lymph node biopsy alone where the nodes are clear or only minimally involved.
Radiotherapy to the armpit instead of clearance in selected patients with limited node involvement.
Close monitoring of the armpit in carefully selected cases, as advised by the team.
Targeted removal of marked nodes after treatment first, in some centres.
A second opinion if you are unsure about the recommendation.

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.

General anaesthetic

Usually done fully asleep under a general anaesthetic, especially when combined with breast surgery.

Regional or local techniques

Nerve blocks or local anaesthetic may be added to help with pain after surgery.

Benefits

Removes lymph nodes affected by cancer from the armpit
Shows how many nodes are involved, which is important for staging
Helps the team plan radiotherapy, chemotherapy or hormone treatment
Reduces the chance of cancer remaining or returning in the armpit
Gives a clearer picture of the cancer than a sentinel node biopsy alone

Risks & complications

More common

A fluid collection in the armpit (seroma) that often needs draining
Numbness or altered sensation in the upper inner arm
Shoulder stiffness and reduced movement for a time
Pain, bruising and tightness in the armpit

Less common

'Cording' — tight, painful bands in the armpit that limit movement
Wound infection needing antibiotics
Bleeding or a blood collection (haematoma)
Lasting weakness or winging of the shoulder blade if a nerve is affected

Rare but serious

Long-term arm or hand swelling (lymphoedema), which can be permanent
Injury to nerves or blood vessels to the arm
Blood clots in the leg or lung after surgery

The biggest long-term concern is lymphoedema — arm or hand swelling that can be permanent and is more likely than after a sentinel node biopsy, and more likely again if the armpit also has radiotherapy. Ask your surgeon for your personal risk, how to reduce it, and how to get seen quickly if your arm starts to swell.

Published figures to discuss

Lymphoedema and shoulder problems vary widely with how many nodes are removed, whether radiotherapy is given, body weight, infection and individual factors. Different studies measure swelling differently and follow patients for different lengths of time, so the figures below are cautious averages, not your personal risk.

Figure	Reported range	How to interpret it	Source / confidence
Long-term arm lymphoedema after clearance	Often reported around 1 in 5 (roughly 16–25% in pooled data), and higher with armpit radiotherapy	A meta-analysis found markedly higher lymphoedema after clearance than after sentinel node biopsy; radiotherapy to the armpit increases it further.	Upper limb morbidity after ALND vs SLNB: systematic review and meta-analysis — PMCncbi.nlm.nih.govPublished figure
Lymphoedema after sentinel node biopsy (for comparison)	Lower, broadly in the low single figures (around 4–8% in pooled data)	Included for comparison; many people choose the smaller operation partly to reduce this risk.	Upper limb morbidity after ALND vs SLNB: systematic review and meta-analysis — PMCncbi.nlm.nih.govPublished figure
Reduced shoulder movement / pain	Reported in roughly a quarter to a third after clearance in some studies	Often improves with exercises and physiotherapy, but can persist; higher than after sentinel node biopsy.	Guide sourcesClinical context

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 the armpit part of the surgery is mostly about shoulder movement, managing any seroma, and reducing the risk of lymphoedema. If it is combined with breast surgery, the overall recovery follows that operation too.

First few days

The armpit is sore and a drain may be in place. Gentle arm and shoulder movements are encouraged, avoiding heavy lifting. You may go home with the drain.

First 1–2 weeks

Any drain is usually removed, though a seroma may form and need draining in clinic. You are told your pathology results, which guide the next steps.

Weeks 2–6

Shoulder movement improves with exercises. Most people return to many normal activities, building up gradually. Numbness in the inner arm may persist.

6 weeks and beyond

Movement usually returns to near normal. Be alert for arm swelling, which can appear later, and continue exercises and skin care to reduce lymphoedema risk.

What's normal — and not a worry

Soreness, bruising and tightness in the armpit
A seroma (fluid swelling) that gradually settles or is drained
Numbness or odd sensations in the upper inner arm, often long-lasting
Shoulder stiffness that improves with gentle exercises
Tiredness and the emotional impact of cancer treatment

Aftercare

Do the arm and shoulder exercises you are given to restore movement and reduce stiffness.
Look after any drain as instructed and report problems.
Care for the skin of the arm and hand: avoid cuts, burns and insect bites where you can, and treat any infection promptly.
Watch for arm or hand swelling, heaviness or tightness, and report it early.
Avoid very heavy lifting with that arm in the early weeks; build up gradually.
Ask whether blood tests, blood pressure and injections should use the other arm.
Keep follow-up appointments and use your breast care nurse for advice.

Before-surgery checklist

Loose, comfortable clothing that is easy to put on
Help at home for the first days, especially with lifting
A way to manage a drain at home if needed
Pain relief at home as advised
Breast care nurse and clinic out-of-hours numbers saved
Arm and shoulder exercise instructions to hand
A note of who to contact if your arm starts to swell

Scars and how they heal

The scar is usually in the armpit, or part of the breast wound if done at the same time. It is firm and pink at first and usually softens and fades over months. The armpit area may stay numb or feel different long-term because small nerves are divided.

⚠ Get urgent help if…

New or worsening swelling, heaviness or tightness in the arm or hand
Spreading redness, heat, increasing pain or pus from the wound or arm (possible infection)
A rapidly growing, tense swelling in the armpit (possible bleeding)
Fever or feeling generally unwell
A hot, swollen calf, or breathlessness or chest pain (possible clot) — seek urgent help
Severe or worsening pain, or sudden loss of shoulder movement

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 good result means the affected nodes have been removed and the armpit is cleared of cancer that can be seen. The pathology report a week or two later says how many nodes were removed and how many contained cancer, which is a key part of staging.

Those results, reviewed by the multidisciplinary team, help decide what further treatment you need, such as radiotherapy, chemotherapy or hormone treatment. Clearing the nodes lowers the risk of cancer returning in the armpit but cannot on its own promise the cancer will never come back.

How long it lasts

Once the nodes are removed they do not grow back, but the effects on the arm — numbness, and the risk of lymphoedema — can be long-term, and lymphoedema can appear months or years later. Good skin care, exercises and early treatment of any swelling help protect the arm over time. The cancer outlook depends on the whole treatment plan.

Combining with other procedures

Axillary clearance is usually combined with breast cancer surgery and is part of a wider plan that may include radiotherapy, chemotherapy, hormone treatment or targeted treatment. Where radiotherapy to the armpit is also planned, the combined effect on lymphoedema risk should be discussed.

Follow-up & long-term care

You will normally be seen within a week or two to check the wound, manage any seroma and discuss results, with further appointments through treatment. Longer-term follow-up includes watching for lymphoedema and referral to a lymphoedema service if it develops. You should have a named contact for concerns.

Keep up arm and shoulder exercises as advised
Look after the skin of the arm and treat infections promptly
Report any arm or hand swelling early for assessment
Ask about using the other arm for blood pressure, blood tests and injections where practical

Revision and secondary surgery reality

A seroma may need draining several times in clinic after surgery.
If lymphoedema develops, it is managed long-term rather than cured, with compression, skin care and specialist input.
Cording and shoulder stiffness sometimes need physiotherapy over weeks to months.

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

Clear advice on arm and shoulder exercises and skin care to reduce lymphoedema risk.
A named contact and fast route to be seen if the arm starts to swell.
Prompt referral to a lymphoedema service if swelling develops.
A clear plan for pathology results and any further treatment.
Physiotherapy support for cording or shoulder stiffness where needed.

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:

Whether it is done alone or with breast surgery, and whether as a separate completion operation
Surgeon and anaesthetist fees, theatre time and length of stay
Drains, dressings and any management of seroma in clinic afterwards
Pathology to examine and count the lymph nodes
Follow-up appointments and breast care nurse support
Assessment and treatment of any lymphoedema, including referral to a lymphoedema service

Make sure your written quote includes

The surgeon's and anaesthetist's fees and theatre/facility costs
Whether it is bundled with breast surgery or charged separately
Pathology costs for examining the nodes
Follow-up appointments, seroma drainage and breast care nurse support
What happens — and what it costs — if lymphoedema or another complication develops
How care links with NHS or oncology services for radiotherapy or other treatment

On the NHS? Axillary clearance is a core part of NHS breast cancer treatment; private care may be chosen for speed or choice, but should meet the same clinical standards.

You're entitled to your total cost in writing — including aftercare and any revision — before you decide.

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.

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Questions to ask your medical professional

Take this to your consultation. A good surgeon will welcome every one of these.

Why do I need a clearance rather than a sentinel node biopsy or radiotherapy alone?
Roughly how many nodes will you remove, and what is my personal risk of lymphoedema?
Am I also having radiotherapy to the armpit, and how does that change the risk?
What can I do to reduce my risk of arm swelling, and how do I get seen quickly if it starts?
What will the results change about my treatment?
Who do I contact if my arm becomes swollen, numb or painful?
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 I definitely get a swollen arm (lymphoedema)?

No. Most people do not develop lymphoedema, but the risk is higher than after a sentinel node biopsy, and higher again if the armpit also has radiotherapy. Early treatment helps if it does start.

How is this different from a sentinel node biopsy?

A sentinel node biopsy samples only one or a few 'first' nodes; a clearance removes most of them. Clearance is a bigger operation with more numbness, seroma and a higher risk of arm swelling.

Do I always need a clearance if a node has cancer?

Not always. Where only one or two sentinel nodes are involved, teams increasingly use radiotherapy or close monitoring instead of a full clearance. Your team will explain what is right for you.

How long will my arm feel numb?

Numbness in the upper inner arm is common because small nerves are divided, and it is often long-lasting, though it can improve. Tell your team if it is troublesome.

When can I use my arm normally again?

Gentle movement starts early, with exercises to restore shoulder movement. Heavy lifting is built up gradually. Your team will advise on driving, work and exercise.

Is it available on the NHS?

Yes, as a core part of NHS breast cancer treatment. Private care may be used for speed or choice, but the standard of cancer care should be the same.

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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: Cancer Research UK — Surgery to remove lymph nodes from your armpit Breast Cancer Now — Lymphoedema NHS — Breast cancer in women: treatment Upper limb morbidity after ALND vs SLNB: systematic review and meta-analysis — PMC NICE NG101 — Early and locally advanced breast cancer

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.