The Primary Ciliary Dyskinesia (PCD) market segmentation by application reveals distinct dynamics shaping the industry. Diagnostic applications dominate demand, driven by the need for early detection through specialized tests such as ciliary biopsy, nasal nitric oxide measurement, and genetic sequencing. These methods account for ~35% of market value, reflecting their critical role in confirming PCD amid overlapping symptoms with other respiratory disorders. Therapeutic applications, encompassing mucolytics, antibiotics, and bronchodilators, represent ~65% of the market, fueled by chronic disease management requirements. The diagnostic segmentโs growth hinges on advancements in non-invasive techniques, while therapeutic demand remains steady due to the progressive nature of PCD. Together, these applications define the marketโs dual focus on improving diagnostic accuracy and enhancing long-term patient outcomes.