Bleeding from a needle stick that heals quickly still requires treatment, routinely requiring tetanus antitoxin or tetanus vaccine. Bleeding from a needle puncture is likely to be infected with tetanus, although the probability of infection is very low, but once infected with early use of tetanus vaccine or antitoxin is not timely, the consequences are fatal, so the needle puncture bleeding even if it heals quickly, you need to play tetanus vaccine or tetanus antitoxin. Mycobacterium tetani, the causative agent of tetanus, is an anaerobic bacterium, i.e., it grows and reproduces in an anaerobic environment. Deeper wounds that are not easily exposed to air, such as wounds caused by rusty nails, needles, and wooden thorns pierced through the skin, are a high-risk factor for the development of tetanus. It is recommended that bleeding from a needle puncture should be treated promptly even if it heals.