When we make expressions, we "laugh" and the facial muscles touch each other, resulting in a depression called a dimple. However, some people call it "Laughing Nest", or it is nicknamed "Pear Nest" because of its different location and size. Not everyone has dimples, but people who have dimples also have different shapes and heights. Under subdivision, dimples are located about 2-2.7 cm above the corners of the mouth, and there are three kinds of dimples: round, oval and fissure. Generally, dimples are the most obvious when you laugh. And there is a nest on the face, called pear nest. The pear nest is located below the corner of the mouth, about 1 cm. Pear nests are smaller than dimples, so they are not clear. The formation of dimples is mainly genetic.