Megan just had surgery to remove a cancerous mass in her left breast. The doctor assures her that the entire tumor was successfully removed, but still suggests a round of chemotherapy. Why do you think the doctor recommends this course of treatment?
The doctor would do this just in case there was cells or very small cancerous pieces left. If the cancer cells/pieces get hit by the chemo they will be gone. So it is an extra precaution to make sure nothing is left.
