Your mammogram is normal. A. Run, not walk to a surgeon for a biopsy. Q. You have a dark mole that has gotten larger and is changing shape. Your doctor tells you that it looks OK but come back and see him if it keeps growing. A. Run, do not walk to a dermatologist for a biopsy.
Skin biopsies are easy.
If it turns out to be nothing, all you will have lost is the mole. If it is melanoma, waiting may allow it to spread, at which point it is untreatable. Q. You have had the same small, brown mole on your nose since you were a child. It has not changed in any way. Leave it alone.