Does a small wound need a tetanus shot?

Tetanus is mainly parasitic on iron with rust, or contaminated soil. If it is cut, stabbed, or stabbed by something with rust, or if the wound has contact with soil and the surface is dirty, tetanus injection is required. Tetanus is an anaerobic bacteria that needs to reproduce in a narrow, closed environment. If it is only a small wound and shallow, tetanus injection is not required. Some small wounds, small in appearance but deep in depth, are also prone to Clostridium tetanus reproduction. In this case, tetanus injections are required to treat and prevent infection. If it is only a slight superficial abrasion, just rinse with hydrogen peroxide, iodophor apply alcohol to prevent infection.