What breast tissue issues can occur after radiation therapy?
Radiation therapy can cause several changes to breast tissue, both short-term and long-term. Understanding these helps you know what to watch for and when to reach out to your care team.
Short-term tissue changes (during or soon after treatment) may include
* Skin Show Full Answer
What breast tissue issues can occur after radiation therapy?
Radiation therapy can cause several changes to breast tissue, both short-term and long-term. Understanding these helps you know what to watch for and when to reach out to your care team.
Short-term tissue changes (during or soon after treatment) may include:
* Skin discoloration, redness, or darkening
* Swelling (edema) of the breast
* Tenderness or soreness
* Skin that feels warm or looks sunburned
* Dryness, peeling, or blistering
* Enlarged pores
Long-term tissue changes (developing months or years later) may include:
* Thickening or shrinkage of breast skin
* Changes in breast size (larger or smaller)
* Damage to fatty tissue in or around the breast
* Spider veins (telangiectasias) on the breast surface
* Changes in sensitivity (increased or decreased)
* Lymphedema (fluid buildup causing swelling)
A MyBCTeam member shared: "I did 28 treatments. They radiated my entire breast and lymph nodes... I still have burning six months later."
Most short-term effects improve within four to eight weeks after finishing treatment, though some tissue changes can be permanent. Always discuss any new or worsening symptoms with your oncologist, as they can help manage these effects and ensure proper healing.
December 29, 2025
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