There is a wide range of normal frequency of stools
Hard stools or painful defecation
May be associated with abdominal pain, rectal discomfort, withholding behavior, encopresis
May be complicated by rectal bleeding, anal fissures, fecal impaction
Should have a benign "soft" abdominal exam (vs. more concerning abdominal pathologies)
Constipation 
Constipation
Dysuria
Hirschsprung's disease
Dysphagia
Congenital anorectal malformations
Hiccups
Imperforate anus