Bite is not just a wound so simple, whether it is the animal’s mouth or human mouth, there are a large number of pathogenic bacteria inside. Chinese Medical Dictionary records: “the most poisonous teeth of the human scale, so the bite wound wound, but also swollen and painful abnormality, the loss of treatment is stinking pus rot, day long convergence.” Human bite often occurs after mixed infection, rarely see only one kind of germ infection, common clostridium difficile, oral bacillus, digestive streptococcus, digestive coccus, hemorrhagic septic Pasteurella and so on. Most of these germs are anaerobic, if the bite wound is deeper, it is difficult to circulate with the outside air, it is easy to form a hypoxic environment, which is conducive to the growth of these germs. Popularization, the number of colonies in the human mouth is particularly large, there are more than 1,000 kinds of bacteria, divided into negative bacteria, positive bacteria and anaerobic bacteria. If bitten by another person, they are particularly susceptible to infection. The more omnivorous the animal, the more complex the flora. People eat both grass and meat, so among bites, human bites can have more serious consequences than other animal bites. Must be the first time to clean the wound, cleaning methods and dog bite cleaning methods, that is, first squeeze out the dirty blood, preferably with a large number of sterile saline rinse, and then fully drenched with hydrogen peroxide. If there are no conditions, can also be used with soap, water washing, and then coated with iodine, so that the wound is open is the principle, the general situation is not for a period of suture, but should be injected with tetanus antitoxin serum and prophylactic application of some antibiotics. If the wound is deep and the bite is serious, you should go to the hospital immediately for debridement treatment. Why the finger is cut off can be sutured, was bitten off can not be sutured, this is because the finger is cut off, the wound is relatively neat, the local soft tissue and tendon nerve damage is relatively minor, so the surgical anastomosis is relatively easy, but if it is bitten, then at the same time, it will be accompanied by local soft tissue and tendon contusion, contusion is serious can not be sutured, because it is difficult to sew up the wound after the viability.