How do you have surgery without bleeding out?

Question

I know theres things like blood transfusions but how do you get cut wide open and not just bleed out completely from the incisions in surgery.

In: Biology

Answer 1

The surgeons know exactly where they are cutting as to not sever arteries and large veins. There will obviously be capillary bleeding but they try to minimize it and can also use a surgical tool that cauterizes(burns) as it cuts. I think they’re called harmonic scalpels or electro-cautery scalpels.