In a mastectomy, the entire breast is removed.
This is usually indicated when the tumor is too large for a lumpectomy.
In a simple mastectomy, only your breast tissue is removed.
Your surgeon will begin by making an incision around your nipple.
He or she will then separate your breast tissue from the muscle underneath and remove it for examination.
Finally, your surgeon will insert drains to prevent fluid collection, before closing the wound.