Tissue regeneration is a part of the organism's tissue that is traumatized by external forces and partially lost. Based on the remaining part, it grows the same structure and function as the lost part. This repair process is called tissue regeneration. Tissue regeneration includes regeneration of epithelial tissue, regeneration of fibrous tissue, regeneration of cartilage tissue and bonetissue, regeneration of bloodvessels, regeneration of muscle tissue, and regeneration of nerve tissue. As a hot spot in clinical research, tissue regeneration is expected to be used in the treatment of many damaged diseases in tissues, but the specific mechanism remains to be further studied.