**2. Cause of injury**

Caustic injuries are caused by the ingestion of substances with acid or base properties. Acids cause coagulation necrosis, and alkalis cause liquefaction necrosis. Corrosive ingestion in children is usually accidental. In adults, it might be related to suicide. Therefore, it is a public health concern with mental and socioeconomic aspects [1, 2, 6, 11].
