The pear pit is located at the lower side of the corner of the mouth, about 1 cm. Pear pits are smaller than dimples and are not obvious.

Smile when you make an expression. If facial muscles (zygomaticus maximus, zygomaticus minimus, laughing muscles) interact with each other and produce depressions, it is dimples.

However, some people call it "Laughing Nest", or because of its different location and size, it is also called "Pear Nest". Not everyone has dimples, but people who have dimples also have different shapes and heights. Under subdivision, dimples are located within about 3 cm of the upper and lower sides of the corners of the mouth, and there are two kinds of dimples: round and linear. Generally, dimples are the most obvious when you laugh.

Extended data:

It was not until Xiaozong acceded to the throne that Hu Quan was put back into use. In Guangzhou, Hu Quan fell in love with a woman named Li Qian.

According to Zhuzi's Miscellaneous Meanings written by Song Shilie of North Korea, when he was married, his husband found out that he was having an affair and forced him to eat autumn beans (horse food mixed with autumn beans), and he "killed him if he didn't eat them". Forced to eat autumn beans and humiliated. Later, Hu Quan and Li Qian returned to the north from the degraded land.

On the way, I was drinking in Huyuan, Xiangtan. When I was slightly drunk, I wrote on the poem wall: "You are so grateful to be drunk, and there is a vortex in the pear cheeks." The so-called "pear cheek vortex" is Li Chiba.

So "pear vortex" originally refers to the dimple of Li Qian, a prostitute in the Song Dynasty. Later, it was generally called dimples on a woman's cheeks, a woman's smiling face, or a smile. Also called "_ vortex".

Resources: Baidu Encyclopedia-pear vortex