One of the conditions that can lead to esophageal strictures is gastroesophageal reflux disease. Excessive acid is refluxed from the stomach up into the esophagus. This causes an inflammation in the lower part of the esophagus. Scarring will result after repeated inflammatory injury and healing, reinjury and rehealing. This scarring will produce damaged tissue in the form of a ring that narrows the opening of the esophagus.