Perforator flaps refer to the blood vessels that can be used for a free flap reconstruction. Since we are talking about breast reconstruction, I will limit it to those that are used for this purpose. Perforator flaps rely on perforating or penetrating blood vessels that pierce through the tissue to give blood supply to the overlying skin and fat. Common flaps used for the breast include the DIEP flap, the SIEA flap, the IGAP flap, the SGAP flap, the TUG flap, and for smaller defects, the TDAP flap.