This chapter explores the long-term complicationsComplications arising from childhood surgeriesChildhood surgery of the oesophagusOesophagus, with a focus on sequelaeLong-term sequelae emerging in adult life. It particularly discusses the challenges faced by individuals born with oesophageal atresiaOesophageal atresia and those undergoing surgery for gastro-oesophageal refluxGastro-oesophageal reflux in childhood, who later experience recurrenceRecurrence of symptoms or hiatus herniaHiatus hernia. Highlighted cases include issues such as poorly emptying colonic conduitsColonic conduits and baggy colonic conduitsColonic conduits with distal stricturesStrictures, stemming from surgeries performed in infancy. The narrative emphasises the importance of meticulous examination and interpretation of investigative findings to guide appropriate management decisions, underscoring the complexity of addressing complicationsComplications arising from childhood oesophageal surgeries in adulthood.