The oesophagus can develop scar tissue, which can lead to benign esophageal strictures. This frequently happens as a result of esophageal injury. Acid reflux, sometimes referred to as gastroesophageal reflux disease (GERD), is the most typical source of harm. Lower esophageal sphincter (LES) dysfunction leads to gastroesophageal reflux disease (GERD). The muscle between your oesophagus and stomach is called the LES. Normally, as you swallow, it opens for a little moment. When the oesophagus doesn't completely seal, stomach acid can flow back up into it. Heartburn, a burning sensation in the lower chest, can result from this. Scar tissue can develop when toxic stomach acid is exposed frequently. The oesophagus may eventually narrow. Various treatment methods can treat benign esophageal strictures effectively. However, esophageal strictures can reoccur, and people may need to have repeat dilations to reopen the esophagus. According to one source, 30 percent of people who have an esophageal dilation will require dilation within a year.