Which symptom is NOT part of the triad of intussusception?

Intussusception is a condition where a part of the intestine folds into another section, leading to obstruction. The classic triad of symptoms associated with intussusception includes intermittent abdominal pain, currant jelly stools, and a palpable sausage-shaped mass in the abdomen.

Abdominal pain is a primary symptom, often described by the child as severe and colicky, reflecting the intermittent nature of the obstruction. Currant jelly stools indicate the presence of blood and mucus, characteristic of this condition, as the blood vessels get compromised due to the folding of the bowel. The sausage-shaped mass represents the telescoping segment of the intestine, which can often be felt on examination.

Fever is not a part of the classic triad and may not be a direct symptom of intussusception itself. While fever can occur in various gastrointestinal conditions, such as infections or inflammation in the abdomen, it is not closely associated with intussusception as are the other three symptoms. Thus, this makes it the correct choice for the symptom that does not belong to the triad of intussusception.