Lymphoedema & Breast Cancer: Understanding, Risks, and Management

For many breast cancer survivors, the journey doesn’t end with treatment completion. A significant, often overlooked, long-term consequence is lymphoedema – a chronic condition causing swelling, most commonly in the arms or legs. Recent reports and patient experiences highlight the persistent risk and the challenges faced by those living with this often-debilitating condition. As of March 10, 2026, awareness and improved management strategies are crucial for enhancing the quality of life for those affected.

What is Lymphoedema?

Lymphoedema develops when the lymphatic system, responsible for removing fluid from tissues, is damaged or blocked. Breast cancer treatments, particularly the removal of lymph nodes during surgery and radiation therapy, are known risk factors. While not life-threatening, lymphoedema can significantly impact quality of life, causing pain, restricted movement, and increased susceptibility to infections.

Causes and Risk Factors

Surgery and radiotherapy are the primary causes of lymphoedema following breast cancer treatment. Specifically:

• Lymph Node Removal: Removing lymph nodes under the arm (axillary lymph node dissection) disrupts the natural drainage pathways of lymphatic fluid.
• Radiation Therapy: Radiation can damage lymph nodes and vessels, leading to scarring and blockage. Adjuvant proton-based radiotherapy is also associated with the risk of developing lymphoedema.

The condition affects an estimated 10-30% of breast cancer patients, but the true prevalence may be higher due to underdiagnosis and lack of awareness.

Diagnosis and Symptoms

Diagnosing lymphoedema can be challenging, as symptoms can develop months or even years after treatment. Initial symptoms may be subtle and dismissed as normal post-surgical swelling. Key symptoms include:

• Swelling in the arm or leg
• A feeling of heaviness or tightness
• Restricted range of motion
• Recurring infections
• Skin changes, such as thickening or hardening

Early diagnosis is crucial for effective management.

Treatment and Management

There is no cure for lymphoedema, but various treatments can help manage symptoms and improve quality of life. These include:

• Complete Decongestive Therapy (CDT): This involves manual lymphatic drainage, compression bandaging, exercise, and skin care.
• Compression Garments: Wearing compression sleeves or stockings helps to reduce swelling.
• Exercise: Regular, gentle exercise can improve lymphatic drainage.
• Skin Care: Maintaining good skin hygiene and protecting the affected limb from injury are essential.

Advances in Radiotherapy and Lymphoedema Risk

Recent research indicates that advancements in radiotherapy techniques can reduce the risk of lymphoedema. A study published in The Lancet found that 3-week radiotherapy (40 Gy in 15 fractions) was non-inferior to 5-week radiotherapy (50 Gy in 25 fractions) for arm lymphoedema risk and was comparably safe regarding other late normal tissue effects for patients prescribed locoregional radiotherapy for early-breast cancer.

Challenges in Accessing Support

Navigating a lymphoedema diagnosis can be frustrating for patients. Reports indicate a critical gap in care, with patients describing a “zero support” system and difficulties accessing resources and specialized care.

Key Takeaways

• Lymphoedema is a common long-term complication of breast cancer treatment.
• Early diagnosis and management are crucial for improving quality of life.
• Advances in radiotherapy techniques are helping to reduce the risk of lymphoedema.
• Improved access to support and resources is needed for patients living with this condition.

Resources

Managing Lymphoedema After Breast Cancer – Breast Cancer Now