What is Lymphedema? Causes, Symptoms & Treatment Guide

Medical Disclaimer: This post is for informational purposes only and should not be considered medical advice. If you suspect lymphedema, please consult your physician.

Understanding the Lymphatic System

Your lymphatic system plays a vital role in defending your body against infection and disease. This complex network includes lymphatic organs and vessels that work together to keep you healthy.

How it works:

• Lymphatic vessels form a web-like structure throughout your body
• They remove fluid containing oxygen, glucose, and nutrients from tissues
• Lymph nodes filter out bacteria and pathogens
• Clean fluid returns to your bloodstream

Each person has hundreds of lymph nodes. The exact size and quantity vary by individual.

What is Lymphedema?

Lymphedema is a chronic lymphatic disease that causes swelling in one or more body parts. Currently, there is no cure for lymphedema, but it can be effectively managed with proper treatment.

Types of Lymphedema

Primary Lymphedema

• Genetic condition
• Often appears at birth or during early childhood
• Caused by abnormal lymphatic system development

Secondary Lymphedema

• Results from injury to the lymphatic system
• Commonly occurs after cancer treatment
• Caused by lymph node removal, radiation, or chemotherapy

What Causes Lymphedema?

Lymphedema develops when protein-rich fluid builds up under the skin. This happens when:

• Lymph fluid cannot flow properly through lymph vessels
• Excess fluid exceeds the lymphatic system's capacity
• Fluid collects in tissues and causes swelling
• Chronic inflammation develops

Lymphedema Stages: Understanding Progression

Lymphedema is a progressive disease. Once you reach Stage 1, you cannot return to Stage 0. Early intervention is critical to prevent advancement.

Stage 0: Latent Stage

• No visible swelling
• Patient is at risk
• Compression garments may be used during high-risk activities

Stage 1: Mild Lymphedema

• Swelling comes and goes
• Elevation may temporarily reduce swelling
• Pitting edema present (indentation remains when pressed)

Stage 2: Moderate Lymphedema

• Swelling is always present
• Elevation does not reduce swelling
• No pitting edema (indentation does not remain)

Stage 3: Severe Lymphedema

• Permanent extreme swelling
• Often accompanied by pain
• Recurrent infections common
• Requires intensive treatment and ongoing management

Lymphedema Management & Treatment

Finding a Certified Therapist

If you're at risk or have lymphedema, establish a relationship with a certified lymphatic therapist. The Lymphology Association of North America (LANA) certifies healthcare practitioners in lymphedema care.

Find a therapist: Visit clt-lana.org to locate a LANA Certified Lymphedema Therapist (CLT) near you.

Complete Decongestive Therapy (CDT)

CDT is the gold standard for lymphedema treatment. Since each patient's lymphatic system is unique, treatment varies individually.

CDT typically includes:

• Manual Lymphatic Drainage (MLD) massage
• Compression bandaging
• Compression garment wear
• Lymphatic breathing exercises
• Self-care routine education

Early Detection & Monitoring

For at-risk patients, therapists will:

• Establish baseline measurements
• Use bioimpedance devices to track fluid changes
• Review risk reduction practices
• Schedule regular monitoring appointments
• Identify swelling as early as possible

Lymphedema Risk After Cancer Treatment

Cancer treatment can damage the lymphatic system through:

• Lymph node removal (for cancer staging)
• Radiation therapy
• Chemotherapy

When Does Lymphedema Develop?

The timing is unpredictable. Some patients develop lymphedema during treatment. Others may not experience symptoms for 25+ years after treatment.

Location matters: Lymphedema affects the area closest to treatment.

• Breast cancer → Upper limbs and trunk
• Cervical cancer → Lower limbs

Early intervention is crucial. Know the warning signs and consult your doctor immediately if symptoms appear.

Warning Signs of Lymphedema

Watch for these symptoms in at-risk areas:

• Full or heavy feeling in your limb
• Size difference between affected and unaffected limbs
• Weakness or reduced range of motion
• Pitting edema (indentation remains after pressing for 20 seconds)
• Tight-feeling skin
• Jewelry or clothing feels tighter than usual

Reducing Your Lymphedema Risk

1. Avoid Infection

Your lymphatic system is part of your immune system. Protect at-risk areas from infection.

Best practices:

• Use your unaffected arm for blood draws and injections
• Keep skin clean and moisturized
• Protect against cuts and scratches
• Clean any breaks in skin immediately
• Apply antibacterial ointment and bandages to wounds
• Wear protective gear during gardening, sports, and hiking

2. Prevent Burns

Burns trigger immune responses that can cause lymphedema.

Protection tips:

• Apply and reapply sunblock regularly
• Exercise caution when cooking
• Avoid hot surfaces and liquids

3. Limit Heat Exposure

Hot weather correlates with increased swelling.

Stay cool by:

• Taking breaks in air conditioning during summer
• Avoiding extremely hot baths or showers
• Skipping saunas and hot tubs
• Staying hydrated

4. Avoid Constrictions

Tight items can act like a tourniquet and impede lymphatic drainage.

Watch out for:

• Tight jewelry and watches
• Restrictive clothing
• Blood pressure cuffs (on affected arm)
• Tight bra straps or underwire

5. Maintain Healthy Weight & Diet

Research shows a strong link between obesity and lymphedema development.

Nutrition guidelines:

• Eat fruits, vegetables, and lean proteins
• Choose complex carbohydrates
• Drink water throughout the day
• Reduce salt intake
• Consult your doctor about weight management if needed

6. Exercise Safely

Exercise is safe and beneficial for lymphedema patients when done correctly.

Exercise tips:

• Wear compression garments during activity
• Start slowly after cancer treatment
• Consult your doctor about appropriate intensity
• Focus on gradual progression

7. Take Precautions During Air Travel

Airplane cabin pressure can trigger or worsen swelling.

Travel recommendations:

• Wear a well-fitting compression sleeve
• Add a gauntlet or glove
• Wear compression before, during, and after flights

Exercise & Lymphedema

Staying active is essential for lymphedema management. Research shows that proper exercise improves lymphatic flow.

Recommended Exercises

Lymphatic exercises:

• Breathing exercises
• Muscle pump exercises
• Always wear compression garments during these activities

General fitness:

• Cardiovascular training
• Resistance training
• Activities approved by your therapist

Work with your lymphedema therapist to develop a safe, effective exercise routine. Exercise benefits both physical and mental health.

Understanding Compression Garments

Medical graduated compression garments are a cornerstone of lymphedema therapy.

How Compression Works

Compression garments provide graduated pressure:

• Highest pressure at the most distal point (farthest from heart)
• Pressure gradually decreases toward the heart
• Helps pump lymph fluid back toward the body
• Prevents fluid stagnation

Compression Classes

In the United States, compression is measured in millimeters of mercury (mmHg):

Class 1: 20-30 mmHg

• Mild to moderate lymphedema
• Prevention during at-risk activities

Class 2: 30-40 mmHg

• Moderate to severe lymphedema
• More intensive management needed

Example: A Class 1 arm sleeve delivers 20-30 mmHg at the wrist. Pressure decreases gradually up the arm.

Always wear compression garments as recommended by your therapist. They're essential for effective lymphedema management.

Lymphedema & Cellulitis: A Serious Complication

If you have lymphedema, you're at higher risk for cellulitis—a serious bacterial infection.

What is Cellulitis?

Cellulitis is a bacterial infection of the deeper skin layers. It's typically caused by Streptococcus or Staphylococcus bacteria.

The Dangerous Cycle

Lymphedema and cellulitis create a vicious cycle:

1. Cellulitis causes lymphatic damage → leads to lymphedema
2. Lymphedema increases cellulitis risk → infection recurs
3. Up to 47% of patients experience recurring cellulitis
4. Each infection worsens lymphedema severity
5. May require hospitalization

Warning Signs of Cellulitis

Seek immediate medical attention if you experience:

• Redness in affected area
• Localized warmth
• Increased swelling
• Fever or chills
• Tenderness or pain
• Weeping or oozing from the area

Important: Early identification and treatment are critical. Contact your physician immediately if you suspect cellulitis.

Key Takeaways

• Lymphedema is a chronic condition requiring lifelong management
• Early detection and intervention improve quality of life
• Work with a LANA-certified lymphedema therapist
• Follow risk reduction practices consistently
• Wear compression garments as prescribed
• Stay active with appropriate exercise
• Watch for warning signs and seek help promptly

Need help? Find a certified lymphedema therapist at clt-lana.org.