The biting muscle, as the name suggests, is the muscle that helps people bite things, and is found in the superficial layers of the subcutaneous face. Starting on the outside of the zygomatic bone and ending on the outside of the angle of the jaw, it is a longitudinal muscle that runs from top to bottom, diagonally backward. The role of the bite muscle is mainly to help people bite things with force, so the bite muscle in the process of biting things for a long time, or due to congenital factors may lead to the bite muscle is more hypertrophic, the size of the larger, which is the cause of the square face. If you want to solve the square face caused by large bite muscle, the most simple and easy way is to inject botulinum toxin through micropigmentation, also called face slimming injection. Injections into the biting muscle can block the nutritional effect of the nerve on the muscle, so that the muscle gradually atrophied, so that the face is thinned down.