Different authors use different definitions.
However parental perception of excessive crying may be different from this. Mild cases - unexplained intermittent fussiness in the evenings. This goes on for 2 - 3 hours, the baby is inconsolable, there are loud borborygmi and the pain is relieved by the passage of flatus or stool. Theories of causation 1. Many breastfeeding mothers believe that some foods in their diet cause colic in their infants.