causes of excessive mucus
The following medical conditions are some of the possible causes of Excessive mucus production. There are likely to be other possible causes, so ask your doctor about your symptoms. 1  Acute bronchitis. 2  Asthma. 3  Anaphylaxis. 4  Nasal polyps. 5  Tuberculosis. 6  Esophageal cancer. 7  COPD.