Intussusception is rare in adults and has different characteristics from intussusceptions of children. Its clinical manifestations are varied and often nonspecific, requiring a high index of suspicion for diagnosis. Within the study methods, computed tomography has become fundamental in the study of abdominal pain. This has a high sensitivity and specificity for the diagnosis of intussusception. Most of the time the treatment is surgical, and succeeded in identifying the underlying lesions. We review the basics concepts, pathophysiology, imaging findings and frequent etiologies that can cause intussusception in adults.