Man refers to the protruding skin under the nose, which is an important part of physiognomy. People's length and convexity are different, which can reflect a person's character and destiny. A person's mouth is long and convex, which means that a person's mouth is long and convex; Short-mouth bulge in the middle means short length and small bulge in the middle. According to physiognomy, people with long mouths and protruding mouths are open-minded, optimistic and have a smooth fate; People with short mouths and protruding mouths are introverted and conservative, and their fate is tortuous. It should be noted that physiognomy is scientific, but it should not be too superstitious for reference only.
People with long mouths and short mouths are only a part of their faces and cannot fully represent a person's character and destiny.