In my work I don’t actually see a lot of blood.
I mainly work in an office and a lab rather than a hospital.
In the lab I use machines to test my designs to make sure they are safe before I put they are put into people.
For example I have a machine that crushes things to see how strong they are.
To be honest I am not sure I am that keen on blood even now, I have a fear when watching videos of operations that something will go wrong, I have never watched an operation in person.