凝血块堵塞血流造成疼痛和肿胀。

The clot can block blood flow and cause swelling and pain.

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最危险的情况是血块在身体里运行到肺，堵塞血流。

It is most dangerous in cases where blood clots travel through the body to the lung, blocking blood flow.

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这些炎症反应造成了斑块继续长大、破裂最终堵塞血流。

This causes inflammation that makes plaques more likely to swell, rupture and cut off blood flow.

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