Another fascinating fact about babies is that they cry, but they don’t produce real tears until the age of four weeks.
This is due to their tear ducts that are still developing post-birth. The tear ducts will become functional after one or two months of age.
It doesn’t mean that their eyes can’t produce any water in the meantime, merely that they can’t produce enough to shed tears.
It’s still amazing and crazy how they can cry so much without actually producing any tears!