After being bitten by a blackfish, the severity of the wound should be assessed and, depending on the situation, the wound should be cleaned up or injected with tetanus vaccine in a timely manner. Since the lower jaw of the blackfish is slightly protruding and its teeth are small and sharp and arranged in bands on the upper and lower jaws, the wounds after being bitten by blackfish are often of different depths and sizes, so it is necessary to take measures according to the symptoms after proper assessment. When the wound is shallow and the abrasions are minor, it can simply be sterilized with alcohol or iodine and kept dry. If the wound is large, in order to avoid infection, the first step is to disinfect the wound in a timely manner. You can first remove the sewage on the surface of the wound to keep the wound dry, and then you can use alcohol or iodine povidone, which is less irritating to the wound tissue, to clean and disinfect the wound, and then apply a sterile dressing on the exterior of the wound. If necessary, according to the actual situation of tetanus vaccination. Therefore, after being bitten by the blackfish should not be taken lightly, not only to pay attention to the harmless treatment of wounds but also to consider the possibility of tetanus, if you do not have experience in the treatment of wounds, it is recommended that you go to a professional medical institution for treatment.