Hello
You said that pain abdomen is for last 6 years. I want to know the character of pain
1) Is it severe enough to disturb his daily activities or sleep
2) Is it associated with vomitting
3)What is the frequency of pain abdomen
4) Is it occurs in morning hours only(at the time when he gets ready to go to school
5) Is there any association with food
6) Is he growing with normal pace
Now pain abdomen for last 6 years without associated symptoms( as you have not mentioned the other symptoms I assume it to be not there)is very unlikely. Stool positive for pus cells may be due to present infection. But this does not explain such long history.Normal
CT scan rules out any intraabdominal
lymphadenopathy or anatomical abnormalities.
I would suggest you to give him some antibiotic after consulting your doctor and to get the answers of the question mentioned above. If it is there then discuss it with your physician
Regards