What complications are caused by frequent heartburn?

Several. Inflammation of the esophagus (esophagitis), strictures or narrowing of the esophagus, barrett's metaplasia (precancerous transformation), and esophageal cancer are complications of gerd.
Barrett's. Rarely cancer or barrett's- more than 60 million americans experience acid reflux at least once a month. Acid reflux disease, also known as gastroesophageal reflux disease (gerd), can produce a variety of symptoms. Heartburn. Also called acid indigestion, heartburn is a burning pain or discomfort that can move up from your stomach to the middle of your abdomen and chest. The pain can also move int.