Tuberculosis diagnostics is the academic and methodological field dedicated to the research, development, and application of techniques and strategies for the accurate detection and characterization of *Mycobacterium tuberculosis* infection and active disease in individuals. It encompasses the investigation of diverse approaches, including microbiological culture, molecular assays, immunological tests, imaging, and clinical assessments, with the aim of improving diagnostic accuracy, speed, accessibility, and cost-effectiveness. The significance of this field lies in its critical role in facilitating timely treatment initiation, preventing transmission, and supporting global efforts towards tuberculosis control and elimination.