How long should you wait to get a tetanus shot after stepping on a nail?

According to WebMD, it is imperative that individuals who step on a nail receive a tetanus shot immediately following the injury. It is also important for individuals with nail puncture wounds who have recently received a tetanus shot to contact a physician to ensure proper wound care and treatment.

Mayo Clinic explains that wounds caused by rusty nails are a particular cause for concern, as puncture wounds tend to close up in a short period of time, which in turn can lead to infection. Mayo Clinic also notes that individuals who received a tetanus shot within the past five years are often required to receive a booster tetanus shot within 48 hours following the injury.