Tuberculosis is caused by a bacterial infection that most commonly affects the lungs, though it can involve other parts of the body as well. Some people carry inactive infection without symptoms, while others develop active disease that can cause significant illness. When the lungs are involved, tuberculosis may interfere with breathing and lead to ongoing inflammation and tissue damage.
Because symptoms can overlap with bronchitis, pneumonia, or even lung cancer, specialist evaluation is often needed. Pulmonary care can help assess symptoms, support diagnosis, and monitor respiratory status.