Honestly, neither is better than the other. Everyone assumes newborns prefer warm milk since breast milk is warm but infants and older children will get used to milk and other foods hot, warm, room temp or cold over time and nutritionally it makes no difference at all.

It will not harm the baby or cause colic or other stomach problems to serve it cold but common sense and tradition tell most of us grandparents that warm is better!

Hello. Any questions about my comments?

Umbilical hernias usually do not cause pain though they do poke out more when they are crying about anything so most parents assume it is the hernia causing the pain. I've had patients who had their hernias surgically corrected however who seemed a lot happier.

As to cold vs. warm, it is known that cold foods cause a more intense "gastro-colic reflex", which is the natural signal sent by the full stomach to the colon causing contractions leading to a BM. More likely this is what he cries about and for that reason, not necessarily the hernia, I'd recommend warming his milk to see if that helps his fussiness.

Here is a link to the only somewhat "professional" website that discusses warm vs. cold milk:

http://www.babycenter.com/404_does-baby-formula-have-to-be-warmed-up_7260.bc

And this link from the Mayo Clinic regarding warming bottles:

http://www.mayoclinic.com/health/infant-formula/MY00193

I see you were typing but chat times out every 5 minutes so I'll hang on.

I think when you exit a box will pop up asking you to rate me and I only get compensated if you rate me high! I think JustAnswer/Pearl gets paid regardless!

I've never been on your side of the website!