In terms of neurodevelopment, smiling is a good sign, and newborns or younger, up to 2 months of age, will smile at bedtime or during normal times. Therefore, smiling does not necessarily mean cerebral palsy, and there is no necessary link between smiling and cerebral palsy. Smiling is actually a good sign that the child is more mature in terms of intellectual development. The normal developmental process of a child can be summarized as one cry, two smiles and three recognitions, i.e. the child will cry at 1 month, smile at 2 months, and recognize his/her mother at 3 months, which is mainly due to the child’s recognition of his/her mother’s scent and voice, and therefore, a smile does not necessarily mean that the child is suffering from cerebral palsy.