Depends. If the cancer is (or was) where you are considering having the Juvederm placed (or even in the surrounding area) this should be discussed and cleared by your oncologist. However, if it is not (that is, not on the face) it is typically OK to have Juvederm treatments. Of note, the American Cancer Society performed a study and started a great program many years ago that showed patients who treat themselves to treatments such going to the hair salon, skin care products, or have other treatments to improve their appearance are more likely to feel better about themselves and even tolerate their cancer treatments better. The attached link provides more information about the American Cancer Society's "Look Good, Feel Good" program. I hope this helps.