Babies’ dry and cracked lips are commonly caused by the following three reasons: 1, the weather factor, the weather is dry in autumn and winter, and the baby’s lips are also prone to dryness and even dryness. 2, if the breastfeeding mother is picky, the baby will also be affected, such as the mother does not love vegetables and fruits, it will reduce the intake of vitamins, the baby will also be affected, such as the baby lacks vitamins, especially the lack of vitamin B12, thus appearing the phenomenon of dry and cracked lips. 3, the ambient temperature is too high or caused by excessive warmth. In response to the above situation, you should pay attention to applying vitamin E lip balm on the baby’s lips in autumn and winter, feed water to the baby appropriately, especially for big babies, and pay attention to the indoor environment temperature not to be too high and not to keep warm excessively. In addition, breastfeeding mothers must not be picky eaters, it is recommended to eat more vegetables and fruits and drink more water. If you have the conditions, you can give your baby a venous blood, check the trace elements, and then according to the test results to be targeted treatment.