• Incidental or gestational thrombocytopenia
• Pseudothrombocytopenia (laboratory artifact with EDTA anticoagulant)
• Disorders with increased platelet consumption
• Immune thrombocytopenic purpura
• Pregnancy induced hypertension ⁄ HELLP syndrome
• Thrombotic thrombocytopenic purpura
•Hemolytic uremic syndrome
•Infection-associated (HIV, malaria)
•Drug-induced (heparin, sulphonamides, penicillin, rifampicin, quinine)
•Systemic lupus erythematosus
•Antiphospholipid syndrome
•Disseminated intravascular coagulation
•Amniotic embolism
•Disorders with reduced platelet production
•Congenital trombocitopenia
•Aplastic anemia
•Leukaemia
•Drug-induced
•Myelodysplasia
Table 1: Causes of thrombocytopenia in decreasing order of frequency during pregnancy.
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