Why Do Some People Have Dimples?
Dimples are caused by a variation in facial muscles that pull the skin inward when you smile. Often inherited, these small indentations are rare and considered attractive in many cultures.
Dimples — those little indentations that appear on some people’s cheeks when they smile — are often seen as a sign of charm and cuteness. But why do some people have dimples while others don’t? The answer comes down to anatomy and genetics.
What Are Dimples?
Dimples are small natural indentations in the skin, usually found on the cheeks. They form when underlying facial muscles pull the skin in slightly during a smile. Some people also have chin dimples, which are formed differently, but the effect is similar.
The Science Behind Dimples
Cheek dimples are usually caused by a variation in a muscle called the zygomaticus major. Instead of being one continuous muscle, in people with dimples, this muscle sometimes splits into two. When they smile, this split muscle pulls the skin inward, creating a visible dimple.
Are Dimples Genetic?
Yes — at least partly. Dimples are often inherited. If one parent has dimples, there’s a good chance the child might have them too. However, it’s not always guaranteed, since genetics can be complex.
Fun Facts About Dimples
- About 20–30% of people have cheek dimples.
- Some dimples are permanent, while others only appear when you smile.
- In many cultures, dimples are considered a sign of good luck, beauty, and even prosperity.
Quick Recap
- Dimples are small indentations caused by muscle variations.
- They often run in families due to genetics.
- Not everyone has them, which is why they stand out so much!
So, the next time you see someone with dimples, you’ll know it’s not just a cute feature — it’s a fascinating little quirk of anatomy and genetics.
