Esophageal atresia, also known as tracheoesophageal fistula, is a disorder that occurs before birth when the esophogous does not develop properly and in turn affects the digestive system. The esophogous is the tube that normally carries food from the mouth to the stomach. Symptoms of this disorder include bluish coloration of the skin, coughing, gagging, and choking when trying to eat as well as drooling. Some babies with this disorder also have other problems such as heart or other digestive tract disorders. Esophageal altresia is considered a surgical emergency and surgery to repair the esophogous should be done quickly after birth in order to treat the disorder. This disorder occurs in about 1 out of 4,000 births.