Breast cancer treatment can sometimes cause very unpleasant side effects such as loss of appetite, nausea, vomiting, weakness, fatigue, mouth soreness. hair loss, weight gain, premature menopause, lowered resistance to infections, weight loss, depression, and pain. Contact your doctor to discuss options to treat these side effects while undergoing cancer treatment.

Side Effects From Breast Cancer Chemotherapy & Radiation
Side Effects From Breast Cancer Chemotherapy & Radiation Chemotherapy and radiation therapy can destroy constantly dividing breast cancer cells. But these treatments can also affect healthy cells.
http://www.webmd.com/breast-cancer/guide/treatment...