screening for lymphedema

Overview

Lymphedema is a condition where fluid builds up in body tissues and causes swelling. It can happen after cancer treatment when lymph nodes (small organs that help fight infection and drain fluid) are removed or damaged. Screening means checking for early signs of lymphedema, sometimes before swelling is visible, so that treatment can start as soon as possible.

Yes. Lymphedema is one of the more common long-term effects of cancer treatment. It is especially common after surgery or radiation for breast cancer, gynecological cancers, melanoma, prostate cancer, and head and neck cancers.

Anyone who has had lymph nodes removed, lymph nodes treated with radiation, or lengthy cancer surgery can be affected. It is not a sign that cancer has returned.

Symptoms

Common symptoms

• A feeling of heaviness, achiness, or tightness in an arm, leg, face, neck, or chest
• Mild swelling that comes and goes, or a limb that looks larger than normal
• Clothing, rings, shoes, or sleeves feeling tighter than before
• Skin that feels tight, shiny, or stretched, or skin that keeps an indentation when pressed
• Reduced flexibility or a feeling that a limb is tired or heavy

Symptoms in children

• Swelling or puffiness in one arm or leg, or around the face, neck, or chest
• A difference in the size of one limb compared with the other
• Tighter sleeves, pants, shoes, or gloves than usual

Symptoms in older adults

• Swelling that is easy to mistake for normal ageing or fluid retention
• Sores or breaks in the skin that heal slowly
• Skin that becomes fragile, dry, or painful over a swollen area

Causes

Main causes

• Removal of lymph nodes during cancer surgery
• Radiation therapy that scars or damages lymph vessels
• Cancer itself pressing on the lymphatic system

Risk factors

• Treatment for breast, gynecological, prostate, head and neck, or skin cancers
• Removal of several lymph nodes or a full lymph node area
• Radiation therapy to the lymph nodes
• Having a higher body weight
• Being older or having a previous infection in the limb

When to see a doctor

See a doctor urgently if:

• Call your care team the same day if you notice any sudden increase in swelling, pain, redness, fever, or skin changes.
• If you have signs of infection together with swelling, call your local emergency number without delay.

Book a routine appointment if:

• Make an appointment for a lymphedema screening at least once a year after cancer treatment if you have had lymph nodes removed or radiated.
• Talk to your cancer care team about getting a baseline measurement before or soon after surgery.
• Tell your doctor about any heaviness, tightness, or new swelling, even if it is mild and comes and goes.

Diagnosis

A doctor or lymphedema specialist will ask about your cancer treatment and look at and measure the affected area. They may compare one side to the other and check for early fluid changes.

Tests that may be done

• Tape measure measurements around the limb at several points
• Bioimpedance spectroscopy, a quick test that uses a gentle electrical signal to measure fluid in the body
• Lymphoscintigraphy, a special imaging scan that shows how lymph fluid moves through the body

What to expect at your appointment

Screening is simple and painless. You may be asked to wear shorts or a loose top so the area can be seen. Measurements take only a few minutes. Your team will record the results and compare them with future visits.

Treatment

There is no cure for lymphedema, but it can be managed well, especially when found early. Treatment focuses on reducing swelling, protecting the skin, and keeping you active. Most people can continue their normal routines with the right support.

Self-care at home

• Keep skin clean, moisturised, and protected from cuts, insect bites, and sunburn.
• Wear compression garments or bandages if your specialist recommends them, and follow their advice on how often to wear them.
• Elevate the affected limb when you are resting, if possible.
• Do gentle stretching or movement exercises as advised by a physiotherapist.
• Avoid very hot showers, saunas, or heating pads on the affected area.

Medical treatments

Your care team may offer complete decongestive therapy, which is a structured programme that includes gentle skin care, manual lymphatic drainage (a specialist massage technique), compression bandages or garments, and exercise. For some people, a pneumatic compression pump may be used. Any treatment plan should be guided by a qualified lymphedema specialist, usually through a hospital or community service.

When is surgery considered?

Surgery is rarely needed. It is considered only when other treatments have not helped enough and should be discussed with a specialist team who can explain the possible benefits and risks.

Living with this condition

Living with lymphedema means finding a routine that protects your skin and keeps fluid moving. Many people manage successfully with compression, gentle exercise, and regular check-ups. It may help to make skin checks part of your daily routine and to keep a simple record of any changes.

Lifestyle tips

• Maintain a healthy weight through balanced eating and regular physical activity.
• Stay active, but build up slowly and avoid pushing through pain or discomfort.
• Avoid walking or sitting for very long periods without a break; move around regularly.
• Ask your care team about precautions for blood draws, blood pressure checks, or injections on the affected side.
• Sleep or rest with the affected limb supported in a comfortable position.

Diet and exercise

No special diet can cure lymphedema, but eating a balanced diet and drinking enough water supports your body. Regular gentle exercise, such as walking, swimming, or supervised stretching, can help lymph fluid move. It is best to start slowly and ask a physiotherapist or lymphedema specialist for advice.

Mental health and emotional wellbeing

It is normal to feel frustrated, anxious, or self-conscious when you develop swelling after cancer treatment. You are not alone. Many people find it helpful to talk with a counsellor, a cancer survivorship group, or someone who has been through similar treatment. If you are feeling overwhelmed or having thoughts of self-harm or suicide, contact your local crisis support service or call your local emergency number immediately.

Prevention

Lymphedema cannot always be prevented, especially when lymph nodes have been removed during cancer surgery. However, regular screening can catch early signs before swelling becomes obvious, and early treatment can keep it from getting worse.

Vaccines

There is no vaccine to prevent lymphedema.

Screening programmes

After cancer treatment, your healthcare team may offer regular measurements and visual checks. If you are at higher risk, you may have screening every few months or once a year. You can also ask for a baseline measurement before treatment begins. Always report a new feeling of heaviness, tightness, or fullness, even if the tape measure looks normal.

Complications

If left untreated

• Repeated skin infections, such as a spreading skin infection introduced by small cuts
• Skin hardening, thickening, or breakdown
• Difficulty moving the affected joint or limb
• Heavy, painful, or less useful limb that affects daily life

Long-term outlook

Finding lymphedema early makes a real difference. Most people who take part in screening and follow a management plan are able to keep their swelling under control and continue doing the things that matter to them. This condition is chronic, meaning it lasts a long time, but it can be managed well with the right care and support.

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