Why do some people have dimples and you don't?

The charming dimpled cheeks create a youthful definition, the dream of many people, especially girls, but not everyone is lucky to have. So why only some people with dimples, due to genetic factors or other causes?

In scientific terms, the fact that dimples are a minor defect of the cheek muscle during fetal development. During the embryonic stage, the human cheek muscle appears to have a defect that causes the muscle between the cheek and skin to stick together. When people laugh, the active muscle shrinks the skin inside to form a small dent that we often call dimples.

Why do some people have dimples and you don't? Picture 1

For those with short cheek muscles, when not smiling dimples also appear. Dimples in each person have different positions and shapes.

According to statistics, only 20% of people in the world have dimples. Even siblings in a family also have people. Dimples cheeks are linked to genetic factors: if both parents have dimples, the children have 50 - 100% chance of inheriting it, if only the father or mother is dimpled, then This ability is only 25 - 50%.

Why do some people have dimples and you don't? Picture 2

Currently, with modern technology, many people can go to surgery to create dimples for themselves.