Most tetanus wounds look like small, deep wounds, or narrow and deep wounds where an anaerobic environment exists in order to contract tetanus. Since tetanus is an anaerobic bacteria, it needs an anaerobic environment to grow and multiply. Bed by nails and other foreign objects, due to the wound skin trauma is small, and the skin damage is deeper, easy to form an anaerobic environment under the skin, is conducive to the growth and reproduction of tetanus bacillus, such wounds should be injected with tetanus antitoxin or tetanus immune globulin in a timely manner. If it is just a skin abrasion, the skin damage is larger, but there is no anaerobic environment, the wound can be exposed to the air, this kind of wounds generally will not be infected with tetanus. If skin damage occurs, you should consult a doctor and, depending on the circumstances, take active steps to prevent tetanus by injecting tetanus antitoxin or tetanus immunoglobulin under the direction of the doctor.