If we're talking physical scars I've got technically 4 but one can be classified as a birth mark so I'm not sure.

1. Right breast- probably my favorite scar and the most infamously known one amongst my friends. When I was… in middle school I guess, there was this odd growth that started appearing on my right breast and at first the doctors just said it was puberty (which was BS since I started puberty like a year or two prior to this), but otherwise we really didn't know what it was or what caused it. Then one doctor claimed it was a cyst and might be cancerous so I had to get it surgically removed. They gave me four shots and I still felt the entire thing when they cut it open. Why? Because it wasn't a cancerous cyst. It was a growth of nerves. Very active, very sensitive nerves. They literally just ripped out a clump of nerves out of my breast and we like "oh well". To this day, I have left sensitivity in that breast. Half the time if something touches or hits it I just don't feel it and we know exactly why. Needless to say, it scarred. The skin's softer where they cut me open and it's slightly deflated as well as a whiter color than the rest of my chest.
2 & 3) My knees- so my freshmen year of high school I dislocated my left knee cap. I had to go through therapy and I ended up straining both my knees terribly by over exerting them. As a result, both knees are now permanently bruised. They're a blueish purplish color and it's not that bad unless you stare but they've been there for four years so I think they're scars.
4) My scalp- so, I was a c-section baby because I got stuck. Apparently during that process, the contractions damaged my skull and it's supposed to incapacitate a child but instead my skull turned out just find except this one part on the top of my head where it dents in. At that same spot is a small red mark that doctor's have classified as the birthmark the angel's kiss.