Scraped by iron out a little blood, it is recommended to immediately squeeze out the blood at the wound to reduce the return flow of blood with bacteria, and then wash the wound with soapy water, after cleaning the application of iodophor, alcohol, etc. to disinfect the wound, if the wound area is large it is recommended to seek medical attention in a timely manner, and wound debridement, dressing, to reduce the possibility of wound infection. Although scraped by iron has the possibility of tetanus infection, but often need to have a deep open wounds, and wounds with necrotic tissue or tissue with ischemia, hypoxia, tetanus bacteria may survive. Therefore, if the patient is only a little bit of blood scraped by iron, the wound is superficial, not suitable for the survival environment of tetanus bacteria, the possibility of tetanus infection in this case is relatively low, you can not inject tetanus vaccine. However, if the wound scraped by iron is deeper, it is recommended that the patient go to the hospital in time to treat the wound and inject tetanus vaccine to avoid tetanus infection. Wounds scraped by iron may be infected with other bacteria in addition to tetanus germs. If the wound is red, swollen, painful, may be a local infection, it is recommended that patients promptly under the guidance of a doctor for anti-infection treatment, such as compliance with medical advice in the wound erythromycin ointment, mupirocin ointment, etc., if the patient has heavy symptoms of infection, fever and other systemic symptoms, it is recommended to follow medical advice with cephalosporins, penicillin drugs oral or static drip, in order to play the role of anti-inflammatory.