Dimples are genetically inherited and are a dominant trait. Dimples on each cheek are a relatively common occurrence for people with dimples. A rarer form is the single dimple, which occurs on one side of the face only. Dimples themselves are actually caused by having shorter muscles.
Dimples are considered attractive in some cultures. Babies commonly have dimples, but sometimes these disappear (or become less noticeable)as the muscles lengthen with age; consequently, dimples are often associated with youth.
Dimples can also be acquired by injuring yourself.citation needed]
It is possible to have one or both cheeks surgically modified to create a dimple. This can cost around $500 per cheek.