A friend of mine had to have a patent foramen ovale closed up when he was a newborn. It left an impressive horizontal scar from his sternum all the way around to a few inches short of his spine. He would tell the curious he fell onto a buzz saw as a child.
I have one scar below my navel from my hernia operation and another, smaller scar above it from the laparoscopic gallbladder removal. I like to say that if I have one more scar made in the area, they will form a rune that will allow me to summon demons from my belly button.
I always encourage people to come up with a way better story to explain injuries, than whatever boring thing actually happened.
My scars are relatively limited. A few I recall from high school have completely faded away. Even the fingertip I nearly sliced off in my early 20s (slip with a knife) is mostly gone. I do still have a couple of very visible scars on a knee from skinned knees as a kid. Not sure why those never faded.
I can’t see my c-section scar, but apparently if you are a doctor and know where to look you can tell it’s there, because it was noted on a report last year.
I’ll be accumulating some interesting (?) new ones over the next year or so, I expect.
I have a slightly larger than silver dollar-sized scar/skin graft on the bottom of my foot from a melanoma excision. It doesn’t hurt or bother me when I’m walking/hiking but I feel it with every step.
As a retired electrician my hand and arms are covered in small scars picked up while construction jobs. There are few in other areas. In the last four years I have had two major surgeries and the scars do not quite connect in the middle from my open heart surgery and my abdominal aorta repair.
Of note: I have a scar about 3/4ths of an inch long just under my left eyebrow from a police nightstick in Lincoln Park, Chicago on 08.27.1968 during the riots associated with the Democratic National convention.
Also of note: I have a scar about 1/2 inch across behind my right knee. My older brother accidentally shot me in the leg due to poor firearm handling.
I have a scar from a hysterectomy. My surgeon said that a vertical cut heals much faster than the popular “bikini” horizontal cut. So I opted for the vertical. It’s faded over the 20+ years. It’s never bothered me, even when I wore a two-piece swim suit.
If there’s one thing all IT people worldwide agree on it’s that the only thing worse than nasal demons is navel demons.
Gonna be bad; really bad. 
I have surgery scars on my neck and jawline from a neck dissection and parotidectomy. One goes up behind my ear. They are my cancer survivor badge of honor. Nobody seems to notice them, though. The surgeons placed them well.
The nerve endings in the area are all wonky. It’s still very sensitive 12 years later. It would be a nightmare to shave, except radiation treatment destroyed all the hair follicles there. Yay!
User name checks out.
I have a long zipper running up my back. It reminds me of the most painful part of my life.
Heheh, I hadn’t even thought about how my name suits my scarred condition. Thankya! 
I forgot about my chicken pox scar! I ended up with one on my forehead; it’s about the size of a pencil eraser and it’s right at my hairline, so you really have to look close to see it. Even during the brief period when I wore makeup, it never bothered me enough to put special effort into covering it.
When I was a teenager I got hit in the eye with a rock from a lawnmower and almost lost my sight in that eye. I was told that there was a permanent scar inside my eye. As of my last eye checkup about a year ago it’s still there.
My most intereting scars are on my hands. One from slicing off a piece of the pad of my finger while trying to peel a butternut squash. Another from slipping while making a linoleum block print – I have a nice “v” shaped scar betwen the ring finger and the middle finger. Most of my scars are boring – my arms are covered with little scars from picking scabs. Those things used to heal eventually, but I’ve gotten old.
I worked with a guy who has a scar all across his body. He was holding the metal mast of a sailboat when the top hit an electrical wire. He lost a couple of fingers and toes, and has a line across his chest. He says that he (not his cloths, his body) caught on fire immediately from the current. Fortunately, he fell away, rather than towards, the mast, and other people were able to put him out and take him to the hospital, where he was treated for major burns. He says the best part was the drugs. Lots of morphine.
Not quite as cool as the shark, but I thought it might be good for an honorable mention.
I have a scar that goes from about 4" above my belly button to about 4" below it. Part of it became infected and it now looks like I have 2 innie belly buttons. Can I now summon demons or fairies or Cthulhu?
Thank you all for your stories. Love them all!
Are you Mariette Hartley?
I have a friend who accidentally shot himself, as a child, in the eye with a mini crossbow improvised from stapler parts, a ballpoint pen, and an acacia thorn.
He now has a figure eight shaped pupil. Suprisingly, his vision is fine.
He is a professional photographer, but I do notice he uses his other eye to focus…
I have a scar on my cheek (face) that I’ve told lots of stories about, none of which were true, except the one where I cut myself with a soup can lid when I was a baby, according to my mom.
When I was eight I was hit in the right eye with a suction cup toy arrow. I remember my vision going dark as I dropped to the ground and I wound up in the hospital with both eyes bandaged. I did not know it at the time but the retina was threatening to detach which, in those pre-laser days meant it could not be spot-visionwelded back in place.
As a result I have a blood clot in that eye that appears as a small, blurry dot occasionally drifting across my vision.
Are you the Joker?