THE presence of a fistulous communication between the esophagus and trachea, without an accompanying esophageal atresia, is rarely reported and is not familiar to many physicians. The classification ...

Mucus consists mainly of water and a gel-forming molecule called mucin. The body uses mucus to protect tissues, remove particles, and prevent infections. Mucus is essential for the functioning of many ...

Not all gross: mucus is vital for healthy airways. William Brawley/Flickr, CC BY We tend to notice mucus only when it’s abnormal and the sticky fluid is expelled from orifices. But actually it’s ...

A fistula is an abnormal, tube-like connection that forms between two organs or vessels that are lined with epithelial cells. Fistulas are generally the result of a disease condition, but artificial ...

Mucus is a thin, slippery fluid that lines the nose, throat, and other passages to trap dust and germs. Phlegm is a thicker type of mucus produced in the lungs to catch and remove harmful particles ...

Coughing up mucus may be a sign of a respiratory infection or lung issue. The color of the mucus may help inform what’s going on. You may be able to clear mucus at home by staying hydrated, using a ...