Neonatal immunologic thrombocytopenia (NITT) is a serious complication in neonates of women with immunologic thrombocytopenic purpura (ITP). Previous pregnancy with TINN or splenectomy-refractory ITP in the mother have been described as associated with the occurrence of TINN. We have reported five cases in which ITP was already diagnosed in two parturients, and neonatal thrombocytopenia was diagnostic in the remaining three. Prenatal treatment of thrombocytopenia with corticosteroids and/or Ig infusion was initiated in three women, with a favorable outcome in only one case. Caesarean delivery...