Hi, You have not mentioned whether he has been evaluated for any underlying cause or not. In such cases, I used to get few simple tests like thyroid function test, serum calcium and an abdominal X-ray (low thyroid and high calcium can cause constipation). Depending on initial reports and response to treatment, occasionally contrast study and ultrasound also. Most of the times, tests comes negative, and I give them laxatives like lactulose, cremaffin, sodium picosulfate etc- sometimes in combination, along with diet modification. Kindly discuss with your doctor. Meanwhile, take care of diet modification. Include plenty of green leafy vegetables, fruits and fibre rich items in diet, drink enough water and follow regular toilet times. Some children have a habit of bowel holding, which should not be allowed as it worsens the situation. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Muhammed Aslam TK, Pediatrician