What’s wrong with a one-and-a-half-year-old baby who likes to bite his nails?

One and a half year old baby like biting nails may be bad habits, xenophagia, mental psychological factors, etc., need to analyze according to the baby’s specific situation.
Bad habits: some babies like to imitate the actions of others, curiosity and other reasons like biting fingernails, long time can not be corrected will lead to the bad habit of biting fingernails.
Ectophagia: generally due to zinc and iron deficiency, parasitic diseases and other causes of ectophagia, the baby is often accompanied by loss of appetite, lethargy and other symptoms, need to improve the micronutrients, parasitic egg test and other related tests to clarify the condition.
Psychological factors: such as nervousness, insecurity and other factors can lead to baby biting fingernails, ADHD baby can have inattention, abnormal movements and other clinical symptoms, the need to consult a doctor in time to clarify the diagnosis.
One and a half year old baby like biting nails, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.