The probability of infectious diseases from haircutting bleeding is relatively small if the haircutting equipment is sterilized and disinfected properly. Theoretically speaking, it is possible that bleeding from haircutting can transmit some blood-borne diseases, such as Hepatitis B, AIDS and Hepatitis C. However, these are viruses that live outside the body. However, these are viruses, the survival time of viruses outside the body is very short, first of all, we can not be sure that the barber’s scissors must have these viruses, and secondly, these viruses in the body of the survival time is very short, generally about two minutes to lose the infectious activity, so the probability of infectious diseases after a haircut is relatively very small. It is recommended to sterilize haircutting equipment before haircutting. If you are injured accidentally while getting a haircut, depending on the size of the wound, if the wound is deep and contaminated, it is recommended that you get a tetanus vaccination in time to prevent tetanus infection. If you are particularly worried about infection, you can consult your physician for advice and get tested for infectious diseases or other tests for specific infectious diseases at intervals.