The reasons why the wound will itch when it heals are as follows: 1. In the wound healing process, there will certainly be local inflammation, and these inflammatory factors stimulating would have led to local discomfort, including pain, itching or swelling and so on. Local tissue nerve repair will also have such a process, especially the peripheral nerve repair process, may feel uncomfortable, including itching. 2, if the local skin is too dry, as well as a long time to apply disinfectant solutions, such as complex iodine or tincture of iodine, etc., if not completely clean, foreign residues on it will also stimulate the skin, resulting in local feeling itchy. 3, need to see whether the local obvious Redness, swelling, breakage, exudation and pus flow, if there is obvious local redness, swelling, heat and painful changes, then it suggests local infection. In this case, further debridement and, if necessary, antibiotic anti-infection treatment may be required. It is recommended to visit the trauma surgery, orthopedics and emergency surgery departments of public hospitals.