What symptom indicates severe iron poisoning in children?

Stomach pain is a significant symptom of severe iron poisoning in children. When a child ingests a large amount of iron, it can lead to gastrointestinal distress, which often manifests as intense abdominal pain. This occurs because iron is corrosive to the stomach lining and intestines, leading to irritation and potential damage.

In addition to stomach pain, other symptoms of iron poisoning can include vomiting, diarrhea, and lethargy as the body struggles to handle the excess iron. Iron toxicity can sometimes result in more serious conditions, such as metabolic acidosis and organ failure, emphasizing the need for prompt medical attention if overdose is suspected.

While headaches, vision problems, and skin rashes may be associated with various medical conditions or poisonings, they are not the primary indicators of severe iron poisoning in children. Stomach pain stands out as a direct consequence of iron's toxic effects on the gastrointestinal tract.