Axillary lymph node dissection overview
Informed by recognized medical guidance
Overview
Axillary lymph node dissection is a surgical procedure to remove lymph nodes from the armpit area. It is often done to check if cancer has spread or to reduce the risk of cancer coming back.
Key facts
- It is usually done under general anaesthesia, so you will be asleep and feel no pain during the operation.
- A small drain may be placed in the incision to remove excess fluid and help healing.
- Recovery can take several weeks, and you will need to do gentle exercises to regain arm movement.
It is a common procedure for people with certain cancers, such as breast cancer or melanoma, that have spread to the lymph nodes in the armpit.
This surgery mainly affects people diagnosed with cancers that can spread to the lymph nodes in the armpit. It is most often done in adults.
Symptoms
- Sudden, severe swelling of the arm or hand that makes it look much larger than the other side.
- Signs of infection that get worse quickly: high fever, chills, red streaks around the wound, or pus that smells bad.
- Difficulty breathing or chest pain after surgery.
- ⚠Mild to moderate swelling that does not go away or gets worse over a few days.
- ⚠Numbness or weakness that spreads or does not improve.
- ⚠Redness, warmth, or increasing pain around the incision that does not get better with simple pain relief.
Common symptoms
- Swelling in the arm or hand on the side of the surgery (lymphoedema) – this can be mild or more noticeable.
- Numbness, tingling, or a pulling sensation in the armpit, arm, or shoulder.
- Pain or discomfort in the armpit area.
- Limited ability to move the arm or shoulder at first.
Symptoms in children
- Axillary lymph node dissection is very rarely performed in children. If it is needed, the child’s care team will provide specific guidance and support.
Symptoms in older adults
- Older adults may have a higher risk of complications such as infection, delayed wound healing, or more persistent swelling. Extra care is taken to manage these risks.
Causes
Main causes
- The main reason for axillary lymph node dissection is to remove lymph nodes that may contain cancer cells. It is not a disease but a treatment step when cancer is found in the axillary (armpit) lymph nodes.
Risk factors
- Having breast cancer or melanoma that has spread to the lymph nodes in the armpit.
- Having a sentinel lymph node biopsy that shows cancer cells present.
- Having a large or aggressive tumour that is more likely to spread to lymph nodes.
When to see a doctor
See a doctor urgently if:
- If you have a high fever, chills, or signs of infection around the wound that get worse quickly.
- If your arm or hand becomes suddenly very swollen and painful.
- If you notice any red streaks spreading from the incision.
Book a routine appointment if:
- Attend all follow-up appointments with your surgeon or specialist nurse to check your recovery.
- Schedule a visit if you have questions about wound care, drain management, or arm exercises.
Diagnosis
The decision to perform axillary lymph node dissection is based on tests that show cancer has spread to the lymph nodes in the armpit. These tests may include a biopsy, imaging scans, or a smaller procedure called sentinel lymph node biopsy.
Tests that may be done
- Sentinel lymph node biopsy – a dye or radioactive tracer is injected near the tumour to find the first lymph node(s) that drain from the cancer area. These are removed and checked for cancer cells.
- Ultrasound or CT scan of the armpit to see if lymph nodes look swollen or abnormal.
- Fine needle aspiration – a thin needle is used to take a small sample from a lymph node to check for cancer cells.
What to expect at your appointment
You will meet with your surgeon to discuss the risks and benefits of the surgery. The operation usually takes 1–2 hours under general anaesthesia. You may stay in hospital for a short time, often overnight. A drain may be placed to remove fluid. Your healthcare team will give you detailed instructions for care at home.
Treatment
The main treatment is axillary lymph node dissection itself – removing the lymph nodes. After removal, the nodes are examined under a microscope to see if they contain cancer cells. Additional treatments such as chemotherapy, radiation therapy, or hormone therapy may be recommended depending on the results and your overall cancer care plan.
Self-care at home
- Follow the wound care instructions given by your nurse or doctor. Keep the incision clean and dry until it heals.
- Perform gentle arm exercises as recommended by a physiotherapist to prevent stiffness and help reduce swelling.
- Avoid heavy lifting, vigorous activity, or using the arm on the operated side for several weeks.
- Use your arm normally in daily life, but take care to avoid cuts, burns, or injuries to that arm.
Medical treatments
After surgery, you may receive pain relief and, if needed, antibiotics to prevent or treat infection. Physiotherapy can help restore arm movement and reduce the risk of lymphoedema. For persistent swelling, a compression sleeve or other lymphatic drainage techniques may be recommended. Your cancer team will discuss any further treatments based on the lymph node results.
When is surgery considered?
Surgery is performed when cancer has spread to the axillary lymph nodes and removing them may improve outcomes and help guide further treatment. A less invasive sentinel lymph node biopsy is usually done first to see if a full dissection is needed.
Living with this condition
After you recover, you can go back to most normal activities. However, you may need to take extra care of your arm on the side of surgery. Try to avoid having blood drawn, injections, or blood pressure measurements on that arm if possible, to reduce swelling risk.
Lifestyle tips
- Keep the skin on your affected arm clean and well-moisturised to avoid cracks and infections.
- Wear gloves when gardening, cooking, or doing chores to protect your arm from cuts and scratches.
- Gradually increase your activity level as your strength and movement improve – listen to your body.
Diet and exercise
A balanced diet with plenty of fruits, vegetables, and protein supports healing. Gentle exercises like walking, stretching, and the specific arm movements your physiotherapist gives you are encouraged. Avoid heavy lifting until your surgeon says it is safe.
Mental health and emotional wellbeing
It is common to feel anxious, frustrated, or down during recovery. Many people cope well over time, especially with support. Talk to your healthcare team if you feel overwhelmed – they can connect you with counselling or local support groups.
Prevention
Axillary lymph node dissection is a treatment for cancer that has spread, not a disease itself, so prevention does not apply directly. However, early detection of breast cancer or melanoma through regular screening and check-ups can reduce the chance that lymph nodes are involved, which may lower the need for this procedure.
Screening programmes
Screening for breast cancer (mammograms) and regular skin checks for melanoma can help detect cancer early. If found early, treatment is more likely to be less extensive and may avoid the need for full lymph node dissection.
Complications
If left untreated
- If cancer has spread to the axillary lymph nodes and they are not removed, the cancer may continue to grow and spread to other parts of the body, making treatment more difficult.
Long-term outlook
For most people, axillary lymph node dissection is a successful part of cancer treatment. Side effects like lymphoedema can be managed with care and support. Recovery takes time, but many patients return to full, active lives. Your healthcare team will help you every step of the way.
Find support
International organisations
Local organisations
- NHS (National Health Service) ↗ · United Kingdom
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Always verify with your doctor
Health guidelines vary by country and region. The information in this article is based on international clinical guidelines but may not reflect the specific guidelines, medications, or practices in your country. Always discuss your health concerns with your own doctor or healthcare provider, and refer to your local national health guidelines where available.
Important notice This information is for educational purposes only. It does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call your local emergency services immediately.
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Sources and guidance
This article is educational and is prepared with reference to recognized health information and clinical guidance sources where available. Specific source links may vary by topic.
Last updated: July 16, 2026
Educational note: This information is for education only and is not a diagnosis.
Use it to support, not replace, advice from a licensed clinician.
If symptoms are severe, worsening, or urgent, call your local emergency number or seek emergency care.
Guidance may differ by country or region. Confirm local recommendations with a qualified healthcare provider.