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 We evaluated risk factors to determine if there were specific risk factors that could predict massive bleeding in nulliparous women with placenta previa.  The participants were classified into two groups. Women with a calculated blood loss ≥ 1,000 mL were included in the massive bleeding group. Women without any signs or symptoms related with hypovolemia or with a calculated bleeding volume  1,000 mL were categorized into the non-massive bleeding group.  There were 28 patients (40.6%) with massive bleeding and 41 cases (59.4%) with