Do you need tetanus if you are scratched by iron

Whether to inject tetanus antitoxin after being scratched by iron depends on how deep the wound is. Generally, as long as the wound is deeper, tetanus antitoxin needs to be injected. Because the deeper wound can create an anaerobic environment, air cannot enter, and Clostridium tetani can reproduce inside. But at the same time, it depends on whether the iron that scratched oneself is rusty iron or very new stainless steel. If the iron is rusty, it is necessary to inject tetanus antitoxin in this case, because it is very likely to contain Clostridium tetani. However, if the iron is newly produced and opened, and has not come into contact with natural soil, it is unlikely that Clostridium tetani will still be on it. If the cut is very shallow and can be completely exposed to the air, it is not necessary to inject tetanus antitoxin in this case.