ACID ingestion is a frequently used method in attempted suicide. Most often, tissue damage rather than immediate death is the result. Although the esophagus is usually spared after acid (but not alkali) ingestion, the stomach is damaged, with gastric outlet obstruction a common late consequence. Report of a Case A 49-year-old garage owner was brought to the emergency room four hours after ingestion of an unknown amount of battery acid (concentrated sulfuric acid). He complained of burning in his mouth and difficulty in swallowing, and he later vomited. On examination, his temperature was 38.2 °C; blood pressure, 110/70 mm Hg; pulse, 110 beats per minute; and respirations, 25/min. Frothy, blood-tinged secretions were present in his mouth and pharynx. The mucosa of the hypopharynx was completely white and the uvula swollen. Coarse rhonchi were present bilaterally. The abdomen was tender in the epigastric region, with involuntary guarding and minimal rebound tenderness.