Is Chemotherapy Necessary Before or After Breast Cancer Surgery, or At All? Posted on July 22, 2018 at 9:00 am.Written by Valerie Gorman, MD, FACS Chemotherapy is an effective way to treat and prevent the spread of breast cancer, but new research suggests it is not always necessary. A recent study found that breast cancer has been highly over treated with chemotherapy and doctors can now confidently provide an alternative treatment known as Endocrine Therapy. However, each patient is different with a unique set of circumstances. Chemotherapy is necessary in advanced stages, as well as early stages when specific characteristics are present, such as spreading to the lymph nodes or other body parts. Continue reading…