Small-intestine length in infants and children

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Updated: Aug 13, 2026

Tissue Engineering of the Intestine in a Murine Model
08:45

Tissue Engineering of the Intestine in a Murine Model

Published on: December 1, 2012

J R Siebert

    American Journal of Diseases of Children (1960)
    |June 1, 1980
    PubMed

    Insights

    Small intestine length in children grows rapidly until 60 cm body length, then plateaus. No significant differences were found across diagnostic groups, though some cases showed abnormal small intestine lengths.

    Area of Science:

    • Pediatric Gastroenterology
    • Human Anatomy
    • Growth and Development

    Background:

    • Accurate measurement of pediatric gastrointestinal anatomy is crucial for diagnosing and managing various conditions.
    • Understanding normal small intestine length variations in children is essential for clinical interpretation.

    Purpose of the Study:

    • To establish reference standards for small intestine length in infants and children.
    • To investigate potential correlations between small intestine length and patient age, body size, and diagnostic categories.

    Main Methods:

    • Measurement of small intestine length (ligament of Treitz to ileocecal valve) in 183 pediatric patients.
    • Correlation analysis with crown-heel length and categorization into diagnostic groups (congenital heart disease, abdominal lesions, miscellaneous).

    Main Results:

    • Rapid intestinal elongation observed up to 60 cm crown-heel length.
    • Intestinal length remained constant between 100-140 cm body length.
    • No statistically significant differences in small intestine length were found among the diagnostic categories.
    • Several cases presented with notably elongated or shortened small intestines.

    Conclusions:

    • Established growth patterns for small intestine length in pediatric populations.
    • Body length is a key determinant of small intestine length in children.
    • While overall group differences were not significant, individual variations highlight the importance of considering specific patient anatomy.

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