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Jeanett Mphume: Lymphedema and the Importance of Early Diagnosis
Jeanett Mphume/LinkedIn
May 25, 2026, 16:07

Jeanett Mphume: Lymphedema and the Importance of Early Diagnosis

Jeanett Mphume, Clinical Nutritionist at Makoanyane Military Hospital, shared a post on LinkedIn:

”Lymphedema: Understanding the Body’s Drainage System

As chronic diseases continue to rise globally, conditions affecting circulation, immunity and overall body function are becoming more common and increasingly challenging to manage.

While conditions such as diabetes, obesity, cardiovascular disease and cancer receive significant attention, disorders of the lymphatic system are often overlooked – despite their major impact on quality of life.

One such condition is lymphedema a chronic swelling that can affect one arm or leg when the lymphatic system fails to properly drain fluid.

What is the Lymphatic System?

The lymphatic system acts as the body’s drainage and defense network consisting of lymph vessels Lymph nodes and Lymph fluid (lymph) Its key functions include:

  • Removing excess fluid from tissues
  • Filtering harmful substances and infections
  • Supporting immune function
  • Assisting in fat absorption

When this system is damaged or blocked, fluid accumulates in tissues leading to swelling known as lymphedema.

Why Does Only One Limb Swell?

When swelling occurs in one arm or leg, it often suggests a localized issue affecting drainage or circulation.

Possible causes of lymphedema:

  • Surgery involving lymph node removal
  • Radiation therapy (commonly in cancer treatment)
  • Infections
  • Injury or trauma

Congenital lymphatic abnormalities Common signs include:

  • Persistent swelling
  • Heaviness or tightness
  • Thickened skin
  • Reduced flexibility
  • Recurrent skin infections

Other Causes of One-Sided Swelling

Deep Vein Thrombosis (DVT): blood clot blocking circulation (medical emergency)

Venous insufficiency: poor return of blood to the heart

Infections (cellulitis): redness, warmth, and pain with swelling Injury or trauma:sprains or fractures

Tumors or masses: compression of lymph or blood vessels

Can Lymphedema Be Prevented?

Not all cases are preventable, especially congenital forms. However, risk can be reduced:

  • Maintain a healthy body weight
  • Stay physically active
  • Avoid prolonged sitting or standing
  • Manage chronic conditions early
  • Protect skin from injury and infection
  • Treat infections promptly
  • Use compression therapy when prescribed
  • Support circulation during travel or post-surgery recovery

The Role of Nutrition

Nutrition plays a supportive role in lymphatic health and inflammation control:

  • Fruits and vegetables provide antioxidants that reduce inflammation
  • Maintaining a healthy weight reduces pressure on circulation
  • Reducing salt helps limit fluid retention
  • Limiting processed foods lowers chronic inflammation

Adequate hydration supports lymph fluid movement

While nutrition alone cannot prevent lymphedema, it supports overall risk reduction and long-term health.

Note

Persistent swelling in one limb should never be ignored especially if it is sudden, painful or associated with redness or shortness of breath.

Early awareness and diagnosis can significantly improve outcomes and quality of life.”

Jeanett Mphume: Lymphedema and the Importance of Early Diagnosis

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