What is the cause of cold hands and legs of a baby?

Question

Hands and legs become cold of my 6 month old baby.She suffer from fever and cold few days ago.

Answer 1

She may be chilling or it may just be that her little circulation system is just not working and getting that blood out to her extremeties (this is not uncommon, think of those tiny little veins).  Rub her legs and hands and cover her warmly, but if it continues call her pediatrition since she ran a fever a few days ago.