“…Acid ingestion has been found to be a cause in less than 5% of the stricture cases in United States, while in India it has been found to be involved in about 70%-80% [4,[13][14][15][16]. Most of the ingestions in India are accidental rather than suicidal [15]. The common acids ingested in India are sulfuric acid, hydrochloric acid, nitric acid, and carbolic acid [4,15,16], while in the U.S. alkalis such as sodium hydroxide, sodium hypochlorite, and sodium tripolyphosphates are easily available and are the common offenders along with acids such as oxalic acid and hydrofluoric acid [16].…”