Why a boy of nine years old can not controll his feces, every day we find his underwear with feces?

Chronic Retention: Some kids have a slower emptying cycle than others &/or begin a pattern of skipping stools.Early:avoiding discomfort of emptying; school age: avoiding school bathrooms or class embarasement:older; not being able to empty effectively because of balooning of the sigmoid colon.New stool slurries around old compacted poo & leaks.Needs confirmatory xrays, a great wash out & a year long rehab program.