Obstructive lung diseases are a group of respiratory conditions that make it difficult to exhale air from the lungs. This results in reduced airflow and can lead to symptoms such as shortness of breath, wheezing, and chronic cough. Common types include Chronic Obstructive Pulmonary Disease (COPD) and asthma, both of which can significantly impact daily activities and overall quality of life. These diseases are often caused by factors like long-term exposure to air pollutants, smoking, or genetic predispositions. Diagnosis typically involves lung function tests, and management may include medications, lifestyle changes, and pulmonary rehabilitation to improve breathing and enhance well-being.