When a rusty needle is stuck, if it only touches the skin lightly and does not go into the skin, there is no need for a tetanus shot, if the rusty needle goes into the skin, then a tetanus shot is needed. Since Clostridium tetani is widely found in soil and rust, being stuck with a rusty needle may cause the body to be infected with Clostridium tetani, which in turn can lead to tetanus. In addition, whether or not you will develop tetanus is also related to the depth of the rusty needle into the skin. If the depth of the needle into the skin is superficial and there is no bleeding from the finger, then you may not get tetanus. If the rusty needle is deeper into the skin and there is bleeding from the finger, then a tetanus shot is needed. Tetanus shots are divided into tetanus immunoglobulin and tetanus antitoxin, either of which is sufficient. If you get stuck with a rusty needle, follow your doctor’s instructions for treatment.