The trauma of birth is an international concern for all childbearing women globally. Since changes in 1994 to the Diagnostic Statistical Manual that included childbirth as a potentially traumatic event, several clusters of researchers, particularly representing the Scandinavian countries, the United Kingdom, and Australia, have emerged. Their research findings appear in numerous publications; yet, what is known from these studies is based on a variety of methodological designs and differing measurement tools making it difficult to draw many firm conclusions (Ayers, 2004 ; Ayers, Joseph, Mc-Kenzie-McHarg, Slade, & Wijma, 2008 ). This review offers information obtained from frequently cited, current and seminal research studies describing the trauma of birth among women of the world.