What is a common symptom of chronic obstructive pulmonary disease (COPD)?

Chronic cough is a hallmark symptom of chronic obstructive pulmonary disease (COPD). This condition involves progressive airflow limitation primarily caused by chronic bronchitis and emphysema. In patients with COPD, the airways become inflamed and narrowed over time, which leads to increased mucus production. The chronic irritation of the airways often manifests as a persistent cough, which may produce sputum or phlegm. This symptom can vary in intensity and may be more pronounced in the morning or during activities that require exertion.

Other symptoms of COPD may include shortness of breath and wheezing, but a chronic cough is typically one of the first signs that people notice. In contrast, fever, chest pain, and nausea are not commonly associated directly with COPD and can indicate other medical conditions or complications. For example, fever might suggest an infection, while chest pain could be indicative of issues such as cardiac problems or pulmonary embolism, and nausea may arise from a variety of other medical conditions unrelated to the respiratory system. Therefore, a chronic cough specifically aligns with the pathology and presentation of COPD.