What is the primary issue seen in intussusception?

The primary issue seen in intussusception is the obstruction of the intestine. Intussusception occurs when a segment of the intestine telescopes into an adjacent segment, leading to a blockage. This condition can disrupt the normal passage of intestinal contents and can compromise blood supply to the affected area, potentially resulting in ischemia and perforation if not promptly addressed.

In this scenario, the obstruction manifests as a significant clinical concern, typically causing symptoms such as abdominal pain, vomiting, and possibly bloody stools. Quick diagnosis and treatment are essential to prevent severe complications resulting from such an obstruction. Understanding this mechanism is vital in the context of radiological assessments, as imaging techniques are often employed to identify intussusception and evaluate the extent of the obstruction. The other options, while related to gastrointestinal issues, do not specifically pertain to the primary problem associated with intussusception.