<P> Typically , Hirschsprung 's disease is diagnosed shortly after birth , although it may develop well into adulthood , because of the presence of megacolon , or because the baby fails to pass the first stool ( meconium ) within 48 hours of delivery . Normally , 90 % of babies pass their first meconium within 24 hours , and 99 % within 48 hours . Other symptoms include green or brown vomit , explosive stools after a doctor inserts a finger into the rectum , swelling of the abdomen , excessive gas , and bloody diarrhea . </P>
the most common presentation of hirschprung disease is which of the following
the baby fails to pass the first stool ( meconium )