Tuberculosis is transmitted by respiratory droplet transmission and not through sexual contact. However, if one is in the active stage of tuberculosis and is not able to achieve respiratory isolation due to intimate contact during sex, there is a risk of respiratory transmission of infection. At the same time, patients with tuberculosis are not suitable for sex when they are active or in poor health, which may cause excessive consumption and is not conducive to disease recovery. Tuberculosis is mainly transmitted through droplets. Droplets containing Mycobacterium tuberculosis are sprayed into the air through sneezing, talking and coughing of tuberculosis patients, and susceptible people will inhale microdroplets containing the bacteria and become infected. Cutting off the transmission route is a very important way in preventing TB infection, i.e., respiratory isolation is needed. Respiratory isolation means no close contact with patients with active TB. If TB is diagnosed, patients need to be treated with medication of their choice, under the guidance of a medical professional, on a case-by-case basis. In addition, patients with active TB at home should be isolated from their families to avoid infecting them and to maintain indoor ventilation. Patients with tuberculosis can have a normal sex life after their condition has stabilized.