If it is deep kissing and the other person is HIV-positive, there is still a certain risk, but the overall risk is relatively low. Of course, the specific risk needs to be assessed based on the actual situation. If there is bleeding gums or oral diseases, then the risk will increase. If there is no bleeding gums, the risk may be even lower. HIV is mainly transmitted through sexual contact, primarily through unprotected vaginal or anal intercourse, and can also be transmitted through blood and from mother to child.