This is a man who was struck by lightning when he was walking in a storm and the metallic necklace that he was wearing absorbed the strike. it heated up and melted away, leaving a burn mark, reminiscent of its shape. The person was otherwise unaffected, miraculously.
Picture Credits: Dr. Tanveer Adil, MBBS, MS, Medical College, Kolkata
Lichtenberg figure - this crazy scar is found on lightning strike survivors and occasionally on those who were near a lightning strike. These scars exhibit fractal geometry, and if you’ve never studied fractals I highly recommend looking into them. Simply put, fractals are patterns that exhibit self similar characteristics, meaning they look the same at different scales. The overall scar demonstrates the pattern of the electrical outburst creating the lightning, a smaller section of the scar displays the same pattern of the over all scar and the bolt of lightning causing the scar, and on and on and on.
An old heart attack will appear as a white scar on the outside of the heart wall.
Scar accentuated with a tattoo
A Glasgow smile, also known as a Glasgow grin, Chelsea grin or Cheshire grin, refers to the wound that results from slashing a person’s face from the edges of the mouth to the ears. The cut leaves a scar that makes the victim appear to be smiling broadly. The practice is said to have originated in Glasgow, Scotland, but became popular with English street gangs.