If your newborn has cold hands and feet, you should first rule out the presence of a fever. You can take your baby’s temperature, perhaps at the time when the child’s hands and feet are cold is when the temperature is highest. If a newborn develops a fever, it must not be observed at home on its own, but must be seen immediately at the hospital, even requiring a lumbar puncture test, etc. to rule out a serious infection. If the body temperature is not high, just cold hands and feet, then we must look at the mental response, if the mental response is good, not so anxious, because the newborn’s whole body function coordination and regulation ability is limited, not keep warm will appear cold hands and feet situation. Pay attention to keeping the baby warm and replenish water and dairy products, and the cold hands and feet will return to normal. As long as the overall mental state is normal, parents need not worry too much. However, if the mental response is not good, then it is possible that the child may be so severe that he or she cannot even get warm, which is a 100,000 percent emergency situation. If it is not a matter of keeping warm, and there is no fever, and the limbs are usually always cold, then it is important to consider if there is some systemic disease, or congenital developmental problem, and also to seek medical attention, but sometimes the cause is relatively less easy to detect. In short, all the problems of newborns need to be taken seriously.