1. Observe whether the child's emotional reaction is mild. Children's emotions are uncertain, sometimes happy, sometimes sad, sometimes crying, but these are normal situations.
2. Observe whether children's psychological characteristics and behaviors are consistent with their age. With the growth of age, children's attention, self-control ability and problem-solving ability are gradually enhanced.
3. Recording the baby's life, eating habits and growth and development data is helpful for doctors to judge the feeding situation and health status. And make plans for the child's feeding plan and exercise level, which requires parents to pay attention to their children in their daily lives.