Tetanus is not easily contracted.

Tetanus bacilli belong to anaerobes, and are prone to occur in conditions where the wounds are deep, in an anoxic or low oxygen situation, heavily contaminated wounds such as with dirt or rust, and in cases of open fractures with large wounds. In these situations, tetanus bacilli can colonize the skin and mucous membranes, producing neurotoxins that lead to a series of complications. Therefore, anti-tetanus treatment must be conducted for wounds in an anaerobic environment, such as heavily arsenic-contaminated wounds.

For routine wounds that are shallow and small, it is sufficient to change the dressing.