What causes a baby's chapped lips?

Chapped lips in babies may be caused by various factors. 1. Insufficient water intake is one of the most common reasons; when babies lack adequate hydration, their lips can become dry and cracked. 2. Deficiency in vitamin B is another important factor. Especially when babies are picky eaters, a lack of vitamin B can lead to dry lips and may be accompanied by poor appetite. 3. Bacterial infections may also cause cheilitis or angular cheilitis, resulting in chapped lips. 4. Environmental factors such as dry weather or low indoor humidity can further aggravate lip dryness. To help relieve chapped lips in babies, it is recommended to increase fluid intake, ensure a balanced diet, supplement vitamins appropriately, and apply child-specific lip balm when needed. Additionally, maintaining proper indoor humidity can help prevent the baby's lips from being irritated by dry environments.