soft "pencil stools." hard pellet stools, mucus in stools, and bright red, maroon, or tarry stools. The stools may also be foul-smelling. Diverticulitis can be diagnosed with an abdominal CT scan ...

Diarrhea can be more difficult to detect because a baby's stool is naturally loose and unformed ... Mucus, blood, an extremely foul odor and fever are also warning signs and deserve a visit ...