ELI5: Explain Like I'm 5

Surgeon's knot

Okay kiddo, a surgeon's knot is a special kind of knot that doctors and other people who work in medical surgeries use to tie up stitches. When you get hurt and need stitches, the doctor will use special string called "suture" to sew your skin back together. But they have to make sure the knot is really strong so it doesn't come undone while you heal. That's where the surgeon's knot comes in!

To make the knot, the doctor takes the suture string and makes a regular knot like you would tie your shoelaces. Then they make another knot on top of the first one, but instead of pulling the string tight like you normally would, they leave a little loop. Then they take the string and go through the loop and pull it tight. That's what makes the knot really strong and secure.

It's kind of like when you tie a bow on a present - you make two loops, one on top of the other, and then tie them together. But with a surgeon's knot, it's even stronger than a bow because they use special techniques to make sure the knot is tight and won't come undone. So the next time you see a doctor or surgeon tying knots, you'll know why they're using a special knot called a surgeon's knot!