This study aims to evaluate the diagnostic yield and safety of different lung biopsy techniques in patients with interstitial lung diseases (ILD). The study compares transbronchial lung biopsy using forceps, transbronchial cryobiopsy, and thoracoscopic lung biopsy in terms of their ability to provide accurate diagnosis and associated complications. Interstitial lung diseases represent a heterogeneous group of diffuse parenchymal lung disorders that often require histopathological confirmation. This study will help determine the most effective and safest biopsy technique to improve diagnostic accuracy and patient outcomes.