Why does my newborn grunt?

United States
January 17, 2012 11:13am CST
I have a one month old baby that sometimes grunts and strains. Though this is my second child I don't remember my eldest doing that. Does anyone know what the grunting and straining are all about?
1 response
@samd87 (327)
17 Jan 12
My little boy did this when he was a baby, I was told that this could be down to trapped gas.