The rupture or bursting of a blood vessel, causing it to break open and leak or hemorrhage.
From Greek 'angion' (vessel) + 'rhexis' (rupture, breaking). This medical term describes the mechanical failure of vessel walls under pressure.
Angiorrhexis is what happens when pressure builds up too much in a blood vessel—the walls literally can't hold anymore and tear open, which is what causes bleeding strokes and some kinds of aneurysm complications.
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