<prompt> Most common cause of esophagitis isAlcoholSmokingSpicy and hot foodEsophageal reflux  <response>: Ans is d i.e. Esophageal reflux Reflux esophagitis is the most common type of esophagitis. It occurs in patients with gastroesophageal reflux disease GERD secondary to dysfunction of the lower esophageal sphincter. Candidal esophagitis is the most common form of infectious esophagitis.-The Washington manual of surgical pathology pi 65 