What are the side effects of radiation for breast cancer?
Common short-term side effects include:
- Pain: Some people experience mild discomfort or pain around the breast, or stiffness in the shoulder area. Over time, treatments should become less uncomfortable.
- Skin changes: Skin damage is a common side effect of radiation therapy, and having a good skin care routine is essential during treatment. Changes to the skin can include color changes, peeling or flaking, skin that feels tender, dry, itchy or sore, blisters, and excess moisture and weeping.
- Swelling: The breast or surrounding tissue may become swollen or inflamed. Swelling should reduce within a few weeks of the end of treatment.
- Hair loss in the armpit or chest: When a doctor applies radiation to the lymph nodes in the armpit and chest, it can cause hair loss in these areas.
- A sore throat: Applying radiation to the lymph nodes around the collarbone can cause a sore throat or difficulty swallowing. These symptoms should improve once the treatment is complete.
- Fatigue: Radiation can cause someone to feel very tired or fatigued. It’s important to sleep and rest as much as possible during treatment.
Long-term side effects can include:
- Breast changes: The breasts may shrink or become denser after radiation. Some women have reported problems breastfeeding.
- Lymphedema: Lymphedema is swelling of the arm, hand, or chest. Radiation can sometimes damage nearby lymph nodes, leading to a buildup of lymph fluid.
Rare side effects of radiation can include:
- Nausea: Radiation can cause nausea, but this side effect is uncommon.
- Brachial plexopathy: Radiation to the breast or chest wall can sometimes damage the nerves that run through the arm, wrist, and hand. Nerve damage can cause numbness, pain, or weakness in the area.
- Rib fracture: It’s possible for radiation therapy to weaken the ribs, making them more prone to break or fracture. However, with new treatment protocols in practice, this is very rare.
- Heart problems: If a doctor applies radiation to the left side of the chest, it can damage the heart. However, with new protocols in place, this is also rare.
- Lung problems: Very rarely, radiation causes inflammation in the lungs. The medical term for this is radiation pneumonitis, and symptoms include shortness of breath, a cough, and a low-grade fever, which will go away over time.
- A second cancer: In very rare cases, radiation exposure can increase the risk of developing a second cancer.
Coping with side effects
The benefits of having radiation therapy for breast cancer outweigh the risks. However, the side effects can be uncomfortable. Asking friends and family to help with everyday activities during treatment can help a person accommodate some common side effects, such as fatigue. Using heating pads and ice packs may help a person cope with pain and soreness following radiation therapy. Wearing loose clothing and applying an unscented moisturizer can help reduce discomfort caused by skin changes. To reduce stress and fight fatigue, a person can also try:
- Eating a nutritious diet that includes lean protein and plenty of vegetables
- Doing light exercise every day, even if it’s a short walk
- Getting regular massages
- Reducing commitments
- Keeping a mood and symptoms diary
- Joining a support group
- Seeing a therapist
It is important to report any side effects to your doctor or nurse, especially if you are experiencing them for the first time.
Radiation therapy can be a very effective treatment for breast cancer. A person should expect some side effects, but most will be mild and resolve over time. It’s essential to communicate any side effects to your care team, to ensure that you aren’t experiencing a symptom of something more serious. If side effects are impacting your quality of life, talk with your doctor. He or she may be able to recommend ways to reduce your discomfort. For more information about radiation therapy, how it works, if it’s beneficial for you or a loved one, please call OHC at 1-800-710-4674 and we’d be happy to schedule an appointment with a member of our care team.