More than 7 million women in the United States live with chronic obstructive pulmonary disease (COPD). Millions more have the disease but are undiagnosed, possibly due to the common misdiagnosis of asthma for female COPD patients. COPD is a progressive lung disease, with no known cure, that slowly robs its sufferers of the ability to breathe. Smoking is the primary cause of COPD among women. Emphysema and chronic bronchitis are two types of COPD. Your chance of getting COPD goes up the more you smoke and the longer you smoke. Among women in the United States, cigarette smoking causes about 9 out of every 10 deaths from COPD. If you smoke, decrease your risk for COPD by quitting smoking today. For help quitting, call 1-800-QUIT-NOW (1-800-784-8669).