Symptoms and Side Effects

Lymphedema

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Understanding Lymphedema (Arm Swelling)

Lymphedema (LIM-fuh-DEE-muh) is the buildup of lymph fluid that causes swelling, most commonly in the arms or legs. It can result from cancer itself or from cancer treatments like surgery or radiation. Some cases of lymphedema are temporary and mild, while others develop long after treatment and can be more severe or painful.

People treated for breast cancer are at greater risk, especially if they’ve had a lymph node dissection, sentinel node evaluation, or radiation therapy. Because lymphedema can develop months—or even years—after treatment, it’s important to be aware of your body and talk to your doctor or physical therapist if you notice any new symptoms.

Know the Signs of Lymphedema

These symptoms may indicate early lymphedema and are easier to manage when addressed right away. Call your care team promptly if you experience:

  • Swelling of the arm or hand on the same side as your surgery
  • Tightness in your sleeve, watch, or jewelry on that side
  • A heavy or achy feeling in your arm or hand

Talk with Your Care Team About Managing Lymphedema

Your care team can guide you in identifying or relieving lymphedema symptoms. Use the topics below to start the conversation and to understand the strategies your team may recommend:

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Symptom Control

While no single method guarantees prevention, these daily strategies may help minimize your risk:

Monitor for Changes: Watch for redness, pain, heat, or fever; signs of infection. Report any new or worsening swelling.

Protect the Skin: Clean and moisturize the skin near your surgical site. Use gloves when gardening, cooking, or cleaning. Use an electric razor and avoid cutting cuticles

Lifestyle Tips

  • Avoid tight jewelry, clothing, or elastic bands on the affected area
  • Keep the arm or leg elevated when possible
  • Wear loose-fitting clothing and supportive footwear
  • Eat a well-balanced, protein-rich, low-salt diet. See the Nutrition page for more tips and suggestions.
  • Keep all regular follow-up appointments

Activity Modifications

Special Considerations

When to Call for Help

Contact your doctor if:

  • Your swelling gets worse or starts interfering with daily activities
  • You notice signs of infection: redness, pain, heat, or fever