All treatments for breast cancer carry some risk of side effects. Most side effects can be managed and will improve with time. It is important to consider the benefits of treatment and possible side effects when making decisions about treatment. Talk to your doctor about any side effects that are concerning you.
Side effects of surgery
Side effects of surgery may include pain, discomfort and/or numbness in the breast or in the armpit if lymph nodes have been removed. Some people who have surgery to the armpit may develop lymphoedema (swelling in the arm). For more information on the side effects of surgery.
Side effects of radiotherapy
Common side effects of radiotherapy include tenderness or a feeling of tightness in the treated breast, and changes to the skin of the breast such as redness or swelling – a bit like sunburn. It is also common to feel tired during radiotherapy. More information can be found on this site about side effects of radiotherapy and skin care during treatment.


