I have been told I have bone cancer and it is benign? Should I go back to the dotor?

??? There may be some misunderstanding in the communication. Cancer is alwasys malignant, anything benign should not be called cancer. Please clarify with you doctor. Yes there can be benign bone lesions that can be observed. But even for low grade bone cancer, treatment usually is indicated.
Contradiction. The terms bone cancer and benign are mutually contradictory. Consult your doctor, or better yet, get a second opinion.