Is bone tuberculosis contagious?

　　Bone tuberculosis is a type of tuberculosis disease, and many people with bone tuberculosis or those who have close contact with bone tuberculosis patients may have this doubt, is bone tuberculosis contagious?　　Bone tuberculosis is an infectious disease caused by tuberculosis bacteria, so patients with bone tuberculosis are definitely carrying bacteria, but whether or not they are contagious depends on whether or not the patients with bone tuberculosis are draining bacteria. Generally speaking, if a patient with bone tuberculosis has no sinus tracts, drains, etc. to connect with the outside world, he or she will not discharge bacteria, and therefore will not be infectious. If a patient with bone tuberculosis has skin breakdown and chronic sinus tracts with continuous pus flow, then the patient is still infectious. It is important to avoid cross-infection during contact and to pay attention to proper isolation. In addition, some patients with bone tuberculosis may have a combination of pulmonary tuberculosis, intestinal tuberculosis, and so on. These TB diseases are also contagious if the bacilli are excreted.