In both men and women

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The point directly under (JING SHE) next to the left wing of the nose is called the “husband point”, while

 

The point directly under the (GUANG DIAN), next to the right wing of the nose, is called the "wife's point."

 

If a black line is found between these two dots on a man’s face, it means that his wife may be involved in the crime of adultery. 

 

Likewise, the presence of such a line on a woman’s face means that her husband may be involved in the crime of adultery.