Healthy babies cry. It’s their way of expressing their needs and communicating with the people around them. Most of the time, you react by giving your baby what he needs: you feed him, help him fall asleep, change his diaper, or cuddle him. Crying is very useful for babies, who depend on others to meet all their needs.
However, even the most affectionate parents don’t succeed in calming their baby’s crying. It’s not their fault. When a baby cries a lot and long (without interruption), even if he has been fed, changed and cuddled, it’s often said that he’s a baby with colic.