Posibleng Mga Sanhi para sa Chronic na Ubo Chronic na Bronchitis Pabalik-balik na Small-Cell Carcinoma sa Baga Paulit-ulit na Pulmonary Embolism Small-Cell Carcinoma sa Baga Chronic Alcoholism Malalang Respiratory Infection Chronic na Obstructive Pulmonary Disease Upper Airway Cough Syndrome Congestive Heart Failure Allergic Asthma Non-Small Cell Lung Carcinoma Kanser sa Baga Cor Pulmonale Pulmonary Embolism Fibrinous Bronchitis Bronchogenic Carcinoma Bronchioloalveolar Carcinoma Bronchial Adenocarcinoma Idiopathic Pulmonary Fibrosis Fabry Disease Differentiated Thyroid Gland Carcinoma Sarcoidosis Cystic Fibrosis Granulomatosis na may Polyangiitis Sjögren Syndrome Tuberkulosis (TB) Gaucher Disease Aspergillosis Acquired Immunodeficiency Syndrome Invasive Aspergillosis