The most common type of intussuception is

.It is telescoping or invagination of one poion (segment) of bowel into the adjacent segment. Types 1. Antegrade--Most common. 2. Retrograde--Rare (jejunogastric in gastrojejunostomy stoma). In elderly intussusception: * Colocolic is most common type * Apex is formed usually by growth * No role of hydrostatic reduction * It can be single or multiple (rare). * It can be ileo-colic (most common type, 75%), colocolic, ileoileocolic, colocolic. *It is common in weaning period of a child (common in male), between the period of 6-9 months. ref:SRB&;S manual of surgery,ed 3,pg no 863