摘要肺炎支原体感染引起凝血功能障碍与血栓形成，主要累及深静脉、肺和脑等器官。中心静脉置管是发生深静脉血栓形成最重要的危险因素。肺炎支原体肺炎肺实变范围超过肺组织2/3是发生肺动脉栓塞的高风险。血液D-二聚体(>5 mg/L)升高是预测血栓风险的独立危险因子，敏感性较高。彩色多普勒超声和CT血管成像等检查是确定血栓形成的主要方法。肺炎支原体感染相关深静脉血栓形成或肺动脉栓塞宜采用个体化的抗凝与溶栓治疗。

abstractsMycoplasma pneumoniae infection can cause coagulation dysfunction and thrombosis, involving organ including deep vein, lung and brain, etc.Central venous catheterization is the most important risk factor for deep venous thrombosis.Lung consolidation more than 2/3 is a high risk of pulmonary embolismin mycoplasma pneumoniae pneumonia.Elevated blood D-dimer over 5 mg/L is an independent risk factor for predicting thrombus.Color Doppler ultrasound and CT angiography(CTA) are the main methods to determine thrombosis.Deep venous thrombosis or pulmonary embolism should be treated with individualized anticoagulant and thrombolytic therapy.