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Uptodate Reference Title
Major causes of lower gastrointestinal bleeding in children by age group
Major causes of lower gastrointestinal bleeding in children by age group
This figure depicts the major causes of gastrointestinal bleeding in the pediatric age group. The age categories are approximate, and most of these disorders can occur outside of the given age group.
* Rarely, inflammatory bowel disease (IBD) presents before six years of age. This presentation is sometimes termed very early onset IBD (VEO-IBD), or infantile IBD if it presents before two years of age. The disease tends to be severe, with more rapid progression and poor responsiveness to most conventional therapies. The distinct phenotype and early age of onset suggests a pronounced genetic susceptibility and dysregulated immune response.