I’m a medical student.
Due to laws in this country, you can’t practice surgery on cadavers, or live animals, and most don’t practice surgery on dead animals either. Here, they don’t let you actually cut anyone until you’re at least an SHO, which is 2 or 3 years after graduation. but you can do simple things (lines, drains, sutures, assisting in theatre) well before that.
I’ve assisted in theatre a lot (holding clamps, retractors, etc.) and none of that is particularly scary, just very tiring, as you have to keep everything in exactly the same place for hours on end.
I’ve assisted at hernia repairs, hysterectomies, large bowel resections etc. At time that means that I have been elbow deep in someone’s adbomen, but it’s not weird.
Putting in cannulas and taking blood is scarier…you only get 2 goes, and the person is conscious!
Suturing is pretty difficult to do well, but our medical school makes you sign off on several kinds of suture in your 4th year. That means you have to have a line of at least 8 perfect stitches in the fake skin to be passed, so you practice pretty hard until you get it. They test simple interrupted, simple continuous, vertical mattress, horizontal mattress and sub-cuticular stitches. One of my least favourite exams, because you have to spend hours and hours doing the same thing over and over until you get it right, and it’s not exactly thrilling.
Once you have those signed off you can go and stitch people up in the Emergency department, the interns are usually really grateful to have a med student about to do the suturing on simple cases because it means they have less work to do!
My first suturing patient was a guy who had fallen through a plate glass window and sliced a flap off his upper arm… I got to close it with the last 3 sutures. Since then I’ve done a lot of scalp lacerations and a few foot lacerations, nothing where the scar is going to be too visible.
Trust me, after 18 months spent dissecting a cadaver preseved in formaldehyde (we can dissect them, we can’t experiment on them), cutting up live people can only be an improvement.