Babies like to tear paper for two common reasons: 1, belongs to the normal situation, tearing paper is mostly seen in babies around 6-7 months of age, tearing paper belongs to the normal process of hand function development, at this age hands tearing paper sound and the joy of a tear for two can make the baby interested. In addition, when tearing paper, both hands wrists simultaneously rotate forward and backward to try the joy of two-handed movement, so it is a normal situation and belongs to the development process of mutual action of the hands. 2, if older and like to tear paper, while talking less with less eye contact with people there is a communication and interaction disorder, pay attention to the possibility of autism in children, the action of tearing paper may be the stereotypical behavior of the disease, you need to promptly go to the hospital and The paper tearing may be a stereotypic behavior and requires prompt medical attention and necessary assessment and intervention.