Clinical manifestations of intussusception include: firstly, abdominal pain, which is paroxysmal, regular, and characterized by sudden episodes of colicky pain. The child may cry, appear restless, draw knees to the abdomen, have a pale face, and experience pain that lasts for several minutes or longer. The pain subsides, and the child may fall asleep quietly, but the pain typically recurs at intervals of ten to twenty minutes. Secondly, vomiting is an early symptom, initially reflexive and containing curds and food residue, later possibly including bile. Thirdly, bloody stools are an important symptom, with about 85% of cases passing jelly-like mucoid bloody stools within six to twelve hours after onset. Fourthly, an abdominal mass is often located in the upper right abdomen below the costal margin, where a slightly prominent intussusception mass can be felt. In terms of systemic symptoms, the general condition is good in the early stages, with no symptoms of systemic poisoning. As the disease progresses, the condition worsens, and complications such as intestinal necrosis or peritonitis may develop, leading to deterioration of systemic symptoms and possibly resulting in dehydration, high fever, coma, shock, and other toxic symptoms. Treatment methods include both surgical and non-surgical treatments.