Gastroesophageal reflux disease (GERD) occurs due to variety of reasons that ultimately causes increased exposure of esophageal mucosa to irritants such as gastric acid, bile, and pepsin. If left untreated, GERD can result in numerous complications. These are: - Asthma - Chronic cough - Esophagitis - Peptic strictures - Barrett’s esophagus - Recurrent chest infections - Ulceration and bleeding - Sinusitis Reference: https://www.cheyenneregional.org/service/gastroesophageal-reflux-disease-gerd-treatment/complications/ Image via: https://www.msdmanuals.com/home/digestive-disorders/esophageal-and-swallowing-disorders/gastroesophageal-reflux-disease-gerd