My son has had chronic constipation since he was 2mo n he will be 9 yrs in dec. he has a foul smell that even after washing his clothes still smell.?

Chronic constipation: If your child has this bad constipation he neeeds to go see a GI doctor if your pediatrician is aware of it and has tried medications and stool softeners already. If his clothes smell, it sounds like he has stool leakage. Kids with chronic constip. Often have more liquid or softer stool leak past the hard stool in the rectum. Has he been checked for cystic fibrosis?(imp. In some races).