Surgery and radiotherapy to the breast can cause a number of changes. These can include pain, problems with movement, changes to the breast tissue or to the appearance of the breast, and swelling of the arm (lymphoedema) if the armpit is treated.
Always let your cancer doctor or nurse know if you have any of these symptoms. Women sometimes worry that their symptoms are caused by the cancer coming back. Your doctor or nurse will be able to reassure you or arrange to have them checked, if necessary. There are different ways in which these effects can be managed and they'll be able to advise you on what may be helpful in your situation.