Which statement correctly describes physiologic herniation?

Which statement correctly describes physiologic herniation?

• A. Umbilical herniation
• B. Pathologic herniation
• C. Abdominal herniation
• D. Physiologic herniation

Answer: (D)

During early development, a normal, temporary displacement of the gut into the umbilical cord occurs. This physiologic herniation happens because the midgut grows rapidly and the abdominal cavity is still small, so intestinal loops protrude into the umbilical cord around weeks 6 to 10. It isn’t a disease process—the intestines then return to the abdomen by about weeks 10 to 12, with further rotation of the gut. If the intestines fail to return, that would be a pathologic condition such as omphalocele or gastroschisis, not physiologic herniation. So the statement describing a normal, transient herniation of the gut during this developmental window best captures physiologic herniation.

During early development, a normal, temporary displacement of the gut into the umbilical cord occurs. This physiologic herniation happens because the midgut grows rapidly and the abdominal cavity is still small, so intestinal loops protrude into the umbilical cord around weeks 6 to 10. It isn’t a disease process—the intestines then return to the abdomen by about weeks 10 to 12, with further rotation of the gut. If the intestines fail to return, that would be a pathologic condition such as omphalocele or gastroschisis, not physiologic herniation. So the statement describing a normal, transient herniation of the gut during this developmental window best captures physiologic herniation.