Transverse facial septum had been named by Sabestan Cotafana in 2019.In fact,this ligment exist in every face .However, this structure used to be ignored for years. However, it indeed played an important role in cosmetic procedure. Some complications came from this ligment,too. The speaker will present how to define and how to find this ligment.In addition, the speaker will share his experience about this structure in cosmetic procedures.