Those little indentations that appear on our cheeks when we smile have captivated people for generations. They’re often associated with tenderness, youth, and joy, but behind their apparent simplicity lies a fascinating combination of anatomy, genetic inheritance, and population variations. Far from being a mere aesthetic detail, dimples are the result of a particular muscular and cutaneous architecture that’s worth exploring in depth. Anatomy Barbecues and Grills
The explanation for these indentations begins with a specific facial muscle: the zygomaticus major. Its usual function is to raise the corners of the lips when we smile, allowing that universal expression of joy. However, in some people, this muscle has a very particular structural variation: it divides into two independent fascicles or muscle bundles.
This bifurcation causes the skin to be pulled unevenly when it contracts during a smile. The result is that small, visible depression on the cheek that we call a dimple. It is, therefore, a congenital characteristic of the muscle tissue, not a defect or a medical condition.
