Facial dimples are small indentations in the skin that can appear on the cheeks or chin when a person smiles. Many people find dimples attractive and consider them to be a unique facial feature. But are dimples determined by genetics?

There is scientific evidence to suggest that facial dimples may indeed be determined by genetics. Studies have shown that dimples are caused by a variation in the facial muscles, specifically the zygomaticus major muscle. This muscle is responsible for the formation of dimples when a person smiles.

Some individuals may have naturally occurring dimples, while others may not. The presence of dimples is commonly seen as an inherited trait. If both parents have dimples, it is more likely that their children will also have dimples. However, it is important to note that the inheritance of dimples is not entirely straightforward.

The genetics of dimples

Scientists have identified a gene called “Dicer1” which may play a role in the development of facial dimples. This gene is involved in the production of microRNAs, which are small molecules that regulate gene expression. It is thought that variations in the Dicer1 gene may affect the formation of the zygomaticus major muscle and ultimately lead to the presence of dimples.

Further research is needed to fully understand the genetics of dimples. Scientists are working to identify additional genes that may be involved in this trait. By studying families and conducting genetic analyses, researchers hope to uncover more information about the inheritance patterns of dimples.


While the presence of facial dimples is commonly believed to be determined by genetics, further scientific research is needed to fully understand the underlying mechanisms. It is clear that there are genetic factors that contribute to the formation of dimples, but the exact genes and inheritance patterns are still being explored.

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So, if you have dimples, you can take pride in knowing that they may be a result of your genetic makeup. And if you don’t have dimples, it’s just a unique feature that sets you apart. After all, beauty comes in many different forms, and facial dimples are just one example of the amazing diversity in our genetic code.

Scientific articles for further reading

  • Determination of the genetic basis of facial dimples

    This scientific article explores the genetic factors that determine the presence of facial dimples. It discusses various studies conducted on twins and families to identify specific genes responsible for this facial trait. The article provides comprehensive insights into the genetic mechanisms behind facial dimples.

  • Role of genetics in the development of facial dimples

    This article delves into the role of genetics in the development of facial dimples. It highlights the inheritance patterns observed in families with and without dimples, suggesting a strong genetic component in the characteristic formation of facial dimples. The study also explores potential candidate genes responsible for this trait.

  • Association between facial dimples and genetic variations

    This scientific article focuses on the association between specific genetic variations and the presence of facial dimples. It presents findings from a genome-wide association study, identifying key genetic markers linked to the development of facial dimples. The article discusses the functional implications of these genetic variations.

  • Genetic study of facial dimples and their heritability

    This article explores the heritability of facial dimples through a large-scale genetic study. It analyzes data from a diverse population to quantify the genetic contribution to the presence of facial dimples. The study provides insights into the hereditary patterns of this facial trait and highlights the involvement of multiple genes.

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