m (removing citations from lead)
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'''Intussusception''' is a medical condition in which a part of the [[intestine]] [[invaginate|folds into]] the section immediately ahead of it. It typically involves the [[small bowel]] and less commonly the [[large bowel]]. Symptoms include abdominal pain which may come and go, vomiting, abdominal bloating, and bloody stool. It often results in a [[small bowel obstruction]]. Other complications may include [[peritonitis]] or [[bowel perforation]].
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The cause in children is typically unknown; in adults a ''lead point'' is sometimes present. Risk factors in children include certain infections, diseases like [[cystic fibrosis]], and [[intestinal polyp]]s. Risk factors in adults include [[endometriosis]], [[bowel adhesions]], and [[intestinal tumors]]. Diagnosis is often supported by [[medical imaging]]. In children, [[ultrasound]] is preferred while in adults a [[CT scan]] is preferred.
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Intussusception is an emergency requiring rapid treatment. Treatment in children is typically by an [[enema]] with surgery used if this is not successful. [[Dexamethasone]] may decrease the risk of another episode. In adults, [[bowel resection|surgical removal of part of the bowel]] is more often required. Intussusception occurs more commonly in children than adults. In children, males are more often affected than females. The usual age of occurrence is six to eighteen months old.
==Signs and symptoms==
Causes of intussusception are not clearly established or understood. About 90% of cases of intussusception in children arise from an unknown cause.<ref name=
* [[Meckel's diverticulum]]