Children are very active and curious, but due to their young age and lack of awareness of various potential dangers, they are one of the most prone to hand trauma. The main types of injuries include cuts, crush injuries, burns, and explosions (every year a dozen or so cases of children injured by fireworks come to our hospital, even though the ban on whips in urban areas has had no effect). TREATMENT: Apart from cuts, all other injuries involve more or less soft tissue defects in the skin and trauma coverage. The universal method of treatment for this category is through skin grafting or flap transfer. So what is the difference between these two methods? Simply put, if there are no blood vessels, nerves, tendons, bones and other important tissues exposed, and the base of the wound is relatively fresh, then a skin graft (a very thin piece of skin) can be carried out; on the contrary, if there is an exposure of these important tissues, then it is necessary to use a flap for repair (a flap of thicker tissues, including the epidermis, dermis, subcutaneous fat, fascia, and usually through a vascular tip of the blood supply to ensure that the flap transplantation of the The advantages of skin grafts and flaps are as follows The advantages of skin grafts and flaps are: they are reliable; the treatment period is shorter; and the treatment effect is very obvious within a short period of time after the operation. However, these methods also have their shortcomings, first of all, no matter the implant or flap must be cut in the child’s own, which will inevitably cause a large trauma in the skin and flap donor area, the formation of corresponding scar, and even need to be re-implanted to repair the donor area of the defects; secondly, the skin of the hand has a more special tissue structure and morphology, the skin transplanted from other parts of the skin or flap can not be consistent with the skin of the hand in terms of color, texture, texture; hand skin; and the skin is not the same as the hand. Secondly, the skin structure and morphology of the hand is special, and the color, texture, and texture of skin or skin flaps transplanted from other parts of the body cannot be consistent with that of the skin of the hand. A lot of basic and clinical research work was done and it was found that after a pediatric hand injury, his tissue regeneration ability is very strong. Therefore it was envisioned whether a suitable regenerative environment could be created for the purpose of promoting healing. Under the guidance of this idea, many children have been treated with regeneration-induced therapy programs to obtain the desired therapeutic results.