Corrosive esophagitis is characterized by caustic injury following the ingestion of chemical agents. Esophageal bleeding, perforation, or stricture can be worsened by high-degree corrosive esophagitis. Alkalis substances may cause severe post-corrosive injuries of the upper gastrointestinal tract, including perforation that often results in death. The most common complications are esophageal and gastric strictures, which are found in greater percentages than in poisonings with acid substances. Strictures of the esophagus may appear three weeks after ingestion of the corrosive substance, in the first three months ,or according to some authors, even after one year following caustic ingestion[10]. Liquid corrosive substance ingestion more often initiates stenosis than corrosive substances in crystal form. Currently, the majority of endoscopists recommend early endoscopy to determine the severity and extent of the injury and thereby predict prognosis. However, comprehensive guidelines informing the timing and patient selection for endoscopy following ingestion of caustic agents have yet to be established. The timing recommended in the literature remains particularly controversial. Numerous studies recommend that the most optimal timing for esophagogastroduodenoscopy is the first 12–24 hours post-ingestion[11]. Conversely, other studies recommend endoscopy should be performed between 24 hours and 48 hours as damage will have yet to mature before 12 hours and will therefore be underestimated by examination. Since the initiation of fibroplasia, inflammatory changes, and the healing process of the post-corrosive injuries begin on the 5th and are most intensive until the 15th day, it is suggested to avoid endoscopy during this period.