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Side Effects

This list doesn't represent all of the possible side side effects. Please talk to your radiation oncologist about your specific diagnosis to learn more about how likely these side effects may be for you.

View the visual side effects chart.

Short term side effects

Side effects are usually temporary and usually go away shortly after treatment ends. Below is a list of possible side effects you might notice during your treatment.

More likely
  • Skin irritation, redness, peeling
  • Fatigue
  • Swelling, itchiness, pain, tenderness
Less likely
  • Muscle tightening
  • Arm Swelling
  • Sore Throat
  • Shortness of Breath/Cough

Long term side effects

After the short-term side effects of radiation therapy resolve, others may become noticeable months or years later.

More likely
  • Darkening/thickening of skin
  • Scar tissue
  • Arm swelling
Less likely
  • Breast size change
  • Shortness of Breath/Cough
  • Heart Problem
  • Rib fracture
  • Second cancer
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