Delayed meconium passage after birth
80% present within first month of life
May have delayed presentation in milder<unk> 
Chronic constipation
Encopresis
Rectal prolapse
Obstruction symptoms
Neonatal toxic megacolon may occur
Distended abdomen, bilious vomiting, enterocolitis
Enterocolitis
Diarrhea, rectal bleeding, abdominal distention, fever
May have delayed presentation in milder<unk> 
Encopresis
Rectal prolapse
Neonatal toxic megacolon may occur
Distended abdomen, bilious vomiting, enterocolitis
Distended abdomen, bilious vomiting, enterocolitis
Diarrhea, rectal bleeding, abdominal distention, fever
Hirschsprung's disease
Constipation
Meckel's diverticulum
Intussusception
Congenital anorectal malformations
Necrotizing enterocolitis
Imperforate anus
Duodenal atresia