For patients who require a mastectomy, the DIEP flap reconstruction is an advanced, effective option for breast reconstruction. “DIEP flap” is short for deep inferior epigastric perforator flap–a flap of the skin and tissue from the lower abdomen. A DIEP flap reconstruction is a microsurgical technique that provides a natural-looking breast reconstruction by harvesting skin and fat from the lower abdomen to create a new breast. The blood supply to this tissue (the DIEP flap) comes primarily from small blood vessel branches, called perforators.