Figure 5. A, Periumbilical hernia containing fat. H indicates hernial sac. Arrows point to the defect in the rectus shea图5。A，内含脂肪的脐疝。H，疝囊；箭头指示腹直肌鞘的缺损。B，内含脂肪的脐疝三维图像。
Internal hernias are silent if they are easily reducible, but the majority often cause epigastric discomfort, periumbili腹内疝如果易于复原则可以不表现症状，但绝大多数导致上腹不适、脐周疼痛和反复发作的肠梗阻。