Abstract:Silicone gel is a network of polydimethylsiloxane single chains linked by vinyl bridge and long chains entwined with each other.The protective film formed on the surface of the scar after drying has good air permeability and heat dissipation, which greatly reduces the risk of infection caused by dampness of the scar.In this paper, the clinical cases of silica gel and the combined therapy of it for the treatment of scar are described, the current mechanism of prevention and treatment of scar by silica gel is summarized, and the application direction of silica gel for the treatment of scar in the future is put forward.