A small percentage of the human population was born with an extra hole above their ear.
It’s so tiny that if you aren’t looking for it, you might just miss it. If you do notice it, you might mistake it for a piercing. But there’s a name for this feature, and it’s preauricular sinus.
Preauricular sinus, commonly referred to as an ear pit or an auricular fistula, is a congenital malformation, meaning that those who have it are born with it. It may appear on both or both sides. The good news is that it’s harmless. Those who have it, however, should be extra careful because the area is vulnerable to infection.
Neil Shubin, an evolutionary biologist, paleontologist, and popular science writer hypothesizes that the holes “could be evolutionary remnant of fish gills.”
Here are some photos and details of preauricular sinuses. Do you know anyone that has this dimple?