Intermittent episodes of pain are often present and may be associated with other symptoms such as:
Vomiting (non-bilious, late stages bilious)
Child pulls up knees to chest
Asymptomatic periods between episodes where patient has no pain
May be completely benign, smiling, playful
Suspect<unk>  if there are recurrent brief pain episodes, especially if wake child from sleep
Later stages may be associated with lethargy
May present as lethargy alone (Neurologic<unk> , without any of the classic triad
Neurologic<unk>  has also been described as presenting with an isolated seizure and abdominal pain
May be completely benign, smiling, playful
Suspect<unk>  if there are recurrent brief pain episodes, especially if wake child from sleep
Later stages may be associated with lethargy
The classic triad may only be present in up to 21% of cases
Typically have partial/SBO symptoms
Vomiting, rectal bleeding, constipation
Abdominal distension
Late Stage: sepsis
Intussusception
Emergent
Meckel's diverticulum
Necrotizing Enterocolitis
Rectal foreign body
Volvulus
Necrotizing enterocolitis
Testicular torsion