Fetal and neonatal alloimmune thrombocytopenia (FNAIT) is caused by maternal antibodies directed against fetal platelet antigens inherited from the father. Placental transport of maternal immunoglobulin G class antiplatelet antibodies to the fetal circulation may lead to thrombocytopenia and bleeding complications in the fetus or newborn. 1 The estimated incidence of FNAIT is 1 in 1000 live births, and its most severe complication, intracranial haemorrhage (ICH), occurs