Breast reconstruction using a free transverse rectus abdominis myocutaneous flap or a deep inferior epigastric perforator (DIEP) flap is a challenge in patients with a vertical midline abdominal scar due to the poor perfusion of the lower abdominal skin ellipse across the midline. In such patients, only one half of the abdominal skin ellipse can be used with certainty, and this limits the amount of tissue available for reconstructing the breast. Two cases of breast reconstruction in patients with a lower midline abdominal scar are presented using the DIEP flap, in which the poor perfusion across the midline scar was overcome by a technique of crossover anastomoses between the two deep inferior epigastric pedicles. Reliable perfusion of the entire lower abdominal skin ellipse was achieved. This crossover anastomoses technique overcomes the poor perfusion imposed by the vertical midline abdominal scar and enables DIEP flap breast reconstruction to be offered to women with midline abdominal scars.