• Esophageal atresia : surgical repair . • Pyloric stenosis : first correct alkalosis by normal saline then pylorotomy . • Duodenal atresia : duodeno - duodenostomy . • Meckels diverticulum : symptomatic : segmental resection asymptomatic : if patient age >50 leave it but age <50 then do diverticulectomy . • Intussusception : emergent reduction by double contrast enema , but if perforation the do surgery . • Hirschsprung disease : surgery . • Congenital diaphragmatic hernia : stabilize the patient the do surgery repair . • NEC : stop enteral feeding . IV fluid , NG tube , ATB , then ness surgery • Abdominal wall defect : surgical closure , if tension then need silastic patch and later closure . • Cryptorchidism : orchidopexy at 1y but if discovered later then need orchidectomy . • Testicular torsion : orchidopexy of both sides . • Biliary atresia : if age <90days need KASAI ope...