This chapter provides detail description of Gastrojejunostomy. Chapter has 24 well illustrated diagrams and pictures. Gastrojejunostomy stomal edema, gastrojejunostomy stomal ulcer, gastrojejunocolic fistula, retrograde jejunogastric intussusception, bile reflux gastritis, giant stomal ulcer, stomal ulcer bleeding, chromocolonoscopy and inflammatory polyp are described in detail with the help of coloured pictures and relevant text given in boxes.