Babies cry. There's no way to get around it. It's simply how they communicate. Since your baby can't talk, you may worry, "How will I know what she wants?" At first it can be difficult, but a large part of parenting is trial and error, and you'll soon learn to anticipate her needs and wipe away her tears. These are the most common reasons babies cry. If your little one is wailing, work your way down the list and chances are you'll find the cure.