Corrosive injuries to the oesophagus and stomach represent a significant medical challenge, with higher incidence rates in developing countries compared to Western nations. Alkaline substances, such as sodium hydroxide, are the primary causative agents in Western countries, leading to liquefactive necrosis and oesophageal injury, while acid injuries typically affect the stomach due to rapid transit. Initial management focuses on preventing life-threatening complications, with endoscopy playing a crucial role in grading injuries and guiding treatment. Long-term complications, including strictures and perforation, necessitate ongoing monitoring and intervention. Surgical options, including resection and reconstruction, may be required in severe cases, with careful consideration of individual patient factors and multidisciplinary collaboration essential for optimal outcomes. This chapter underscores the importance of prompt assessment, tailored management strategies, and ongoing support for patients with corrosive injuries to the upper gastrointestinal tract.