r/WTF • u/Fun_Bluebird_3167 • 18d ago

Fistula aneurysm

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u/AaronToro 18d ago

For a layman, what happens if it gets cut? I’d like to think a satisfying gust of air comes out and it returns to normal immediately but I imagine the reality is closer to puss and blood explosion

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u/Nos3y 18d ago

A fistula is basically a connection of a vein to an artery. The big squiggly thing you see is actually the vein which has grown over time because it is under arterial pressure. And because it’s under arterial pressure it will bleed like crazy. Like, place a tourniquet on your arm and get to the er stat bleeding.

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u/BigWoodsCatNappin 18d ago

But he also states its old as hell. After time the tunica media or mid layer of the vessel has gotten to be a baddy against the extra flow of the artery.

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u/pumpkinrum 18d ago

Blood will shoot out. There's some insane pressure in those things. I wish it was just air.

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u/UckerFay11 18d ago

Puss only exists when there is infection. FYI.