What does it mean when a baby cries?

Why do babies cry? It's not always clear exactly why, but you can be sure when your baby cries he is trying to tell you something isn't right. It is their main form of communicating to you.

Babies don’t cry to annoy you, or because they are naturally naughty or grumpy, babies just cry, it’s what they do. Some babies seem to be more sensitive to change and discomfort than others are, but ignoring their cries won't make them change. Usually a cuddle with mom or dad is all that is needed to help settle your baby. He loves the feeling of security he finds in your arms, your smell and just being near you.
Fortunately, crying hardly ever indicates a major physical problem or illness. Yet if you are worried about it, then ask for your doctor's advice, to rule out any illness.

In the majority of cases, crying babies are healthy, even babies who cry for a long time, and at least once a day. Your doctor will be able to reassure you your baby's developing well.