More than one year old baby love to bite the lower lip to consider with the habits of life, may also be caused by micronutrient deficiencies.
1. Habits: some babies in the process of growth and development prefer to do unconscious action, such as biting lips, daze, etc., this situation is generally normal, is the baby’s personal habits.
2. lack of trace elements: if the baby’s body lacks calcium, zinc, iron and other trace elements, may lead to the body’s nervous system excitability is elevated, may produce biting the lower lip symptoms, but also may produce eating hands, feet and other situations.
Usually need to observe the baby’s daily habits, if there is any abnormality, it is recommended to consult a doctor as soon as possible.