It has been suggested to me that babies need to cry sometimes in order to learn to regulate their emotions to understand how to get their needs met and that if you 'rescue' your baby all the time she won't know that its ok to cry and will become more distressed say when you leave her because she won't realise she can self soothe. It also sends her the message she can't soothe herself or sort her problems and that only mummy can and that the world's a scary place.
Would be keen to know others thoughts on this?
FYI my DD is 12 weeks old and is generally a pretty contented baby who doesn't really (thankfully) cry that much. However when she does I do always rush straight to her, even when it's not a 'proper' cry.