Diarrhea can be acute or chronic and is usually obvious to identify. Acute diarrhea is a frequent digestive disorder in babies, and it can come on quite suddenly. Acute diarrhea is defined as three or more watery or loose stools per day lasting for around seven to 10 days, 14 days at most.1
A change in stool consistency rather than stool number only, is more indicative of diarrhea in infants. Therefore, frequent passing of formed stools is not diarrhea, nor is the passing of loose, "pasty" stools in a breastfed baby.2 So ask about the infant’s stool consistency as well as number of stools/day.
During the first few months of life, babies pass frequent stools which are yellowish in colour and often soft. This is perfectly normal. The following cases indicate a healthy infant and should not be confused with diarrhea.2,3
· Normal or healthy newborn stools are soft and loose
· Newborn babies pass stools frequently, sometimes after every feed
· Breastfed infants often have pasty stools
The Brussels Infants and Toddlers Stool Scale (BITSS) is validated as a reliable instrument to assess stools of non-toilet trained children.4