Acquired mega-colon in children most commonly due to –

Megacolon Megacolon is an abnormal dilatation of colon that is not caused by mechanical obstruction. Two main types of megacolon are - Congenital megacolon → Hirschsprung disease Acquired megacolon Poor bowel habit                              Idiopathic              Infections → Chaga's disease  Medication Antipsychotic drugs