Iron filings in the leg can easily lead to infections and other problems, and treatment options need to be chosen according to the severity, such as using an antiseptic needle to pick out the iron filings, or treating the wound surgically, and requiring a tetanus shot at the same time. 1. Using a sterilized needle to pick out iron filings: First, the wound needs to be carefully cleaned and disinfected. Carefully clean the wound of contaminants and rinse the wound repeatedly with hydrogen peroxide. If the iron filings get inside the leg, and if the wound is not very deep, you can directly use a sterilized needle to pick out the local iron filings, and then apply iodine povidone to disinfect the wound. 2. Surgery: If the wound is deep and the situation is more serious, pay attention to the brake and rest, and use surgical methods as soon as possible to cut open the local wound to take out the iron filings. 3. Injection of tetanus vaccine: there may be tetanus bacillus in the iron filings, so after the iron filings enter into the leg, it may cause tetanus infection, and need to be injected with anti-tetanus serum to prevent infection. After the iron filings enter into the leg, you need targeted treatment under the guidance of professional physicians, and do not move the leg too much for the time being, otherwise it will easily lead to aggravation of the symptoms, and there may even be damage to the leg tissues, which will lead to functional problems.