The number of cesarean sections performed globally has been consistently rising since the 1980s.1 The number of cesareans performed now greatly exceeds the number that experts predict are necessary.2 In Brazil, the world's "cesarean capital," over half of births are surgical. In the United States, approximately one third of babies are delivered by cesarean, and in the United Kingdom around 26 percent of births are by cesarean.3 Cesarean section can be a life-saving intervention when vaginal birth poses a risk to (...) woman or fetus.4 However, some doctors believe that cesareans performed in the absence of an emergency carry substantial risks for limited or no benefit (Wagner 2000... (shrink)