than in adults. It strikes about 2,000 infants (one in every 1,900) in the United States in the first year of life. Its incidence begins to rise at about one to five months of life, peaks at four to nine months of age, and then gradually declines at around 18 months. Intussusception occurs more frequently in boys than in girls, with a ratio of approximately 3:1. In adults, intussusception represents the cause of approximately 1% of bowel obstructions and is frequently associated with neoplasm, malignant or otherwise. References Further reading Intussusception: A guide to diagnosis and intervention in children Diseases of appendix Diseases of intestines Wikipedia medicine articles ready to translate