Intimate contact with a person with TB is not recommended, and oral sex is even less so. Tuberculosis is an infectious disease that can be transmitted to the respiratory tract through the air and droplets, and the tuberculosis virus in oral saliva can be transmitted to a healthy party, with the risk of infection. Patients with tuberculosis are advised to actively treat the disease during its onset, disinfect and ventilate the room regularly, separate dishes, and burn and destroy sputum after wrapping it in paper. At the same time, people in close contact with the patient should be promptly tested with a tuberculin test to detect whether they are infected and vaccinated for prevention, and wait until the tuberculosis patient has recovered from the disease before engaging in intimate behavior.