Causes of cold hands and feet of three-month-old babies, as follows: 1, if you look at the baby’s face is rosy, touch the neck and back warm, no sweat, consider it a normal phenomenon. As the baby is relatively small, the heart’s pumping function is weak, resulting in slower blood circulation in the limbs, so there will be cold hands and feet phenomenon. 2, if you look at the face is a little white, the head to the quilt or top shrink, touch the tip of the nose is also a little cold, considering that the ambient temperature is too low, or wearing too few clothes, cover too thin and other factors, resulting in the emergence of the feeling of chills. Parents are advised to control the indoor temperature at 22-24 ℃, and increase or decrease the baby’s clothing according to the temperature. 3, if you look at the baby’s mouth and lips red, breathing a little faster, or a little depressed, consider that the baby is feverish. Parents are advised to measure the baby’s temperature immediately, and according to the elevated temperature, give physical cooling or medication to improve the symptoms of cold hands and feet.