The Application segment of the TB Diagnostic market is divided into four principal sub‑categories: Pulmonary TB, Extrapulmonary TB, Latent TB infection (LTBI) screening, and Drug‑resistant TB detection. Pulmonary TB diagnostics dominate the market, accounting for roughly 45 % of total revenue, because the majority of TB cases present with pulmonary involvement and require rapid, point‑of‑care testing. Extrapulmonary TB, which often demands more complex sample handling, contributes about 15 % of sales. LTBI screening, driven by public‑health initiatives and preventive therapy programs, represents an estimated 25 % of the market, reflecting growing investment in early detection. Finally, diagnostics targeting drug‑resistant strains, including molecular assays for rifampicin and fluoroquinolone resistance, hold a 15 % share, underscoring the increasing clinical and economic burden of multidrug‑resistant TB. This TB Diagnostic segmentation illustrates how application‑specific demand shapes overall market size. Geographically, high‑burden regions such as South‑East Asia and Sub‑Saharan Africa drive the pulmonary segment, whereas high‑income markets allocate proportionally more resources to drug‑resistant detection and LTBI screening, reflecting divergent public‑health priorities.