Constipation a commonly unrecognized cause of enuresis.

Constipation was confirmed by history, rectal examination, and rectal manometric studies in 22 of 25 children with enuresis. Treatment of constipation resulted in resolution of enuresis. Uninhibited bladder contractions, observed in enuretic constipated children, were also noted in children with constipation alone, suggesting that constipation is a commonly unrecognized etiologic factor in enuresis.