Chronic Obstructive Pulmonary Disease (COPD) is a progressive lung condition affecting millions worldwide. It is the third most significant cause of death in patients, claiming more than 3 million lives in 2019. However, it often remains undiagnosed until it reaches advanced stages, making early detection crucial for better management and improved quality of life. To do so, exploring the early signs of COPD and taking the necessary actions to mitigate them is essential. Chronic cough Chronic cough is among the earliest indicators of COPD. The persistent cough is commonly dismissed as a symptom of a minor infection or inhalation of allergens. It is typical for the cough to linger around for months. The primary cause for this persistent cough is the prolonged exposure of the respiratory system to chronic inflammation or irritation. Long-term exposure to environmental irritants like chemicals, dust, and other air pollutants can trigger it. Increased mucus COPD patients experience increased mucus production, often accompanied by persistent coughing. The mucus produced in such patients is thicker and stickier than in minor infections. Usually, the lungs produce mucus to protect the airway against irritants. The mucus traps pollutants that enter the respiratory system and eliminates them. When exposed to high levels of irritants, the body produces more mucus to fight off the invaders.