Dimples themselves are actually caused by having shorter muscles in certain areas of the face. They are genetically inherited. Dimples on each cheek are a relatively common. A rarer from is the single dimple, which occurs on one side of the face only. Dimples are considered attractive in some culture. 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.