Excessive Phlegm

If your body produces an excessive amount of phlegm consistently, you might have a rare genetic condition called Alpha-1 Antitrypsin Deficiency (Alpha-1). 

What is Alpha-1? Learn more about Alpha-1 and if you should be tested.

In most people, the alpha-1 protein neutralizes an enzyme in the lung, called neutrophil elastase, that destroys invading germs and digests damaged or aging cells after a short time. In Alphas, there isn’t enough alpha-1 protein in the lungs; the enzyme then keeps working, attacking and destroying normal lung tissue. As this damage continues over the years, lung diseases such as COPD can develop. 

Alpha-1 is often first diagnosed as asthma or smoking-related Chronic Obstructive Pulmonary Disease (COPD). COPD includes emphysema and chronic bronchitis. Alpha-1 is the most common genetic risk factor for COPD. About 3 percent of all people diagnosed with COPD may have undetected Alpha-1. 

Alpha-1 can cause a variety of symptoms. Symptoms of Alpha-1 can begin early in life but usually start in people between 20 and 50 years old. 

The most common Alpha-1 symptoms related to the lungs include:  

  • Shortness of breath, particularly with exertion 
  • Wheezing 
  • Chronic cough and sputum (phlegm) production (chronic bronchitis) 
  • Recurring chest colds or pneumonia 
  • Extreme tiredness (fatigue) 
  • Year-round allergies 
  • Low tolerance for exercise 

Learn more about Alpha-1 Lung Disease symptoms.