“What should you not do before a breast biopsy?”

Normally you don’t need to prepare for a breast biopsy. They will numb your needle area, but you will be awake. Now, if you are going to have a deeper breast biopsy or lumpectomy, they will give you general anesthesia. You must not drink or eat anything at least 8 hours before the surgical procedure. Follow your Dr. recommendation. Thank you

I would check with the mammography center about that.

First of all, ask this question of the physician who will be doing the biopsy since this may depend on what type of biopsy is planned (e.g. simple needle biopsy or an excisional biopsy which is a bit more extensive) and they may want you to stop eating and drinking for a time before the biopsy. Also let the physician know of any allergies (e.g. to anesthetics) or medications you are on (e.g. blood thinners which may cause more bleeding). In general I'm not aware of any other things you should NOT do (obviously don't injure your breast beforehand) but again ask the physician. Thanks! Dave Gordon