What is the actual reason for the “stitch line” on men’s balls? /u/SixFootGoddesss No such thing as stupid questions

I’m a woman (obviously) and though I’ve seen it, I have no idea why it looks like that. I guess in the moment it never occurred to me to ask them why it looks like that. I figured it had to be some sort of common knowledge thing that I never learned growing up, but now that I’m an adult, I wonder. Is it just some simple anatomical explanation? Thank you for your answers!

I’m a woman (obviously) and though I’ve seen it, I have no idea why it looks like that. I guess in the moment it never occurred to me to ask them why it looks like that. I figured it had to be some sort of common knowledge thing that I never learned growing up, but now that I’m an adult, I wonder. Is it just some simple anatomical explanation? Thank you for your answers!