A skin abrasion by rust generally does not require a tetanus shot because although rust can carry Clostridium tetani, the Clostridium tetani contact is the abrasion wound, which is very shallow and can be completely exposed to the air, so there is no anaerobic environment where Clostridium tetani can reproduce. So the Clostridium tetani in the wound will not reproduce and will not produce sufficient amounts of tetanus spasm toxin to cause tetanus. However, in this case, it is also necessary to rinse and disinfect the wound on the abraded skin to remove some bacteria that may be present on it, otherwise there is also a possibility of secondary bacterial infection. Although you won’t get tetanus, this torn skin wound also needs to be properly treated. The rubbed skin wound can be bandaged after rinsing, and if you don’t do any rinsing and instead bandage it tightly with a Band-Aid or something else, there is also the possibility of tiny multiplication of Clostridium tetani.