If the square face is caused by local muscle hypertrophy, that is, masseter muscle hypertrophy, it can also be treated to achieve the purpose of turning the square face into a small face. If the treatment of masseter muscle is temporary, botulinum toxin can be considered, but to achieve permanent effect, partial masseter muscle resection can be considered. If the square face is caused by these few reasons, that is, local fat accumulation, liposuction can be considered at this time, and the purpose of turning the square face into a small face can also be achieved. But most people with square faces need bone plastic surgery. When using botulinum toxin to treat masseter muscle, most of the front faces will look smaller, but it is difficult to change the profile of the side faces. This needs to be known to everyone. Everyone should take different surgical methods according to the specific reasons for the formation of square face, in order to turn the face into a more perfect little face.