In the early days of laparoscopic surgery in procedures such as diagnostic laparoscopy and tubal ligation, the Veress-needle and trocar were only placed in the relatively avascular midline (Fig. 1.1). Consequently, injuries of the abdominal wall vessels were rare. Vessel injuries of the abdominal wall have become more common with the development of more complicated laparoscopic procedures with placement of large-bore trocars laterally.