head and typically forms during the early stages of fetal development.
This condition is known as a preauricular sinus. It’s not dangerous, not a disease, and doesn’t affect a person’s health. Instead, it’s simply a harmless physical trait that may reflect our evolutionary history.
Interestingly, the percentage of people with this mark varies by region:
Africa: About 10% of the population, the highest rate globally
Asia: Around 4%
United Kingdom: Approximately 0.9%
United States: About 0.1%, the lowest
reported rate
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Some theories suggest that this small opening could be a remnant of structures similar to gills
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