Dimple:A beauty or defect?

 Most people use the term "dimple" to refer specifically to indentations on the skin, particularly on the cheeks and chins.Dimpled cheeks are considered attractive in many cultures.
The truth is, most dimples are actually genetic defects.The most common cause is shortened facial muscles, and this just goes to show you that not all “malformations” are bad.
Due to the shortened muscle, dimples are not always apparent in a relaxed state. They become apparent mostly when the muscle is active,like during smiling

    The genetics of dimples:
 Dimples can occur genetically or sporadically.Dimples are a dominant trait, which means that it only takes the presence of one defective gene to inherit dimples. If neither of your parents has dimples, you shouldn't have them either, unless you experience a spontaneous mutation (sporadic change) . If one of your parents has dimples, you have a 25-50% chance of inheriting the gene, since it means that parent inherited the gene from one or both parents. If both of your parents have dimples, you have a 50-100% chance of inheriting the gene, depending on how they inherited their dimple genes.
 Dimples often occur on both the cheeks. A single dimple on one cheek is a rare phenomenon.Dimples tend to disappear as the child becomes older
Dimple on the chin is not hereditary. It occurs due to the incomplete fusion of both halves of the lower jaw during development.
Other sites where dimples can be found include the buttock and sacral region.