血小板减少症是以凝血功能障碍和出血为主要临床表现的出血性疾病,是孕期常见的出血性疾病(较为常见的妊娠期并发症),在孕妇中发生率为6.6%~11.6%[1]。各种生理及病理因素均可引起妊娠合并血小板减少症,主要病因有妊娠期相关性血小板减少、特发性血小板减少性紫癜、妊娠期高血压疾病、妊娠肝内胆汁淤积症、先兆子痫引起的溶血、肝酶升高、低血小板计数综合征、再生障碍性贫血、系统性红斑狼疮等,不 Thrombocytopenia is a bleeding disorder characterized by coagulation disorders and bleeding as a common hemorrhagic disease during pregnancy (a more common complication of pregnancy), with a prevalence of 6.6% to 11.6% in pregnant women [1] . A variety of physiological and pathological factors can cause pregnancy complicated with thrombocytopenia, the main cause of pregnancy-related thrombocytopenia, idiopathic thrombocytopenic purpura, gestational hypertension, pregnancy intrahepatic cholestasis, preeclampsia caused Hemolysis, elevated liver enzymes, low platelet count syndrome, aplastic anemia, systemic lupus erythematosus, etc., not