可识别的骨盆骨折出血源有3种，动脉、静脉和骨折端松质骨出血。

Three sources of bleeding are recognised in pelvic fractures, arterial, venous and bleeding from cancellous bone.

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坐骨大孔是骨盆血管共同的走行通道，此部位发生骨折出血风险极高。

The greater sciatic foramen is a common exit pathway form any pelvic vessels and any fracture involving this area incurs a higher risk of bleeding.

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