Talk to General Physician on Intussusception

my son had intussusception a month ago we took him to lnh where they did enema reduction which went successfull but after 12 hours they gave him biscuits to eat and the intussusception recurrent they again used the enema reduction and Alhamdulillah it was successfull again then they offered him food after 4 to 5 days..now hes eating proper meals and has no abdominal pain atm..my query is can intussusception reccurent after a month also?? what can i do to prevent it what was the cause and most importantly the doctors advised us a ct scan to identify lead point but thier ct machine was not working and it was postponed do i need to go for ct scan now?? i have heard about tumors being the main reason how likely is it?? please guide