Chronic obstructive pulmonary disease

Percentage of females smoking tobacco as of the late 1990s early 2000sPercentage of males smoking tobacco as of the late 1990s and early 2000s. Note the scales used for females and males differ.[28]

On the left is a diagram of the lungs and airways with an inset showing a detailed cross-section of normal bronchioles and alveoli. On the right is lungs damaged by COPD with an inset showing a cross-section of damaged bronchioles and alveoli.

Chronic obstructive pulmonary disease (COPD) is a type of obstructive lung disease characterized by long term poor airflow. The main symptoms include shortness of breath and cough with sputum production. COPD typically worsens over time. Eventually walking up stairs or carrying things will be difficult. Chronic bronchitis and emphysema are older terms used for different types of COPD. Chronic bronchitis is still used to define a productive cough that is present for at least three months each year for two years.

单词	Chronic airflow limitation
释义	Chronic airflow limitation 英语百科 Chronic obstructive pulmonary disease Chronic obstructive pulmonary disease (COPD) is a type of obstructive lung disease characterized by long term poor airflow. The main symptoms include shortness of breath and cough with sputum production. COPD typically worsens over time. Eventually walking up stairs or carrying things will be difficult. Chronic bronchitis and emphysema are older terms used for different types of COPD. Chronic bronchitis is still used to define a productive cough that is present for at least three months each year for two years.
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Chronic airflow limitation

Chronic obstructive pulmonary disease