This kind of picture is often seen in TV plays: when a woman cuts her hand, the man quickly puts it in her mouth and sucks it. This kind of picture not only hurts single people, but also is a wrong demonstration to the broad masses of the people.
First of all, lysozyme in saliva can really kill bacteria, but the content is very, very small. The main component in saliva is water, which is difficult to kill bacteria.
In addition, there are many bacteria in saliva, such as tooth decay and periodontitis, which will also pollute the wound and increase the risk of infection.
Next time you get hurt again, don’t rush to suck. If it is a small wound, rinse it with clear water and stick a Band-Aid. If you are worried about bacteria in the wound, you can disinfect it with iodophor.
If the wound is relatively large, then go to the hospital for treatment, and saliva is even more useless!