Children often fall down when walking, which is usually not a serious problem and can be judged by the baby’s behavior, diet, mental state and other performance. If there is no abnormality in the physical activity and speech, there is nothing to worry about. Specific judgment based on the following: 1, judging from the cry: if the baby cries loudly, and observe the head and body without bruises and other abnormal performance, lightly squeeze the whole body, does not show crying and other abnormal state, you can temporarily determine that the child did not fall, may just be scared, soothe the child’s emotions can be; 2, judging from the degree of physical injury: if the child fell from a high place, head or body swollen bags or 3, judging from the mental state: if the child fell from a high place such as stairs, and head downward, parents need to observe the child in addition to crying, there are no eyes mute, speech difficulties, physical activity, vomiting or drowsiness. If there is such a phenomenon, it is likely to be a concussion and requires prompt medical attention. If the child falls accidentally and the situation is more serious, parents should calmly judge and seek medical attention in time to avoid secondary injuries caused by unauthorized treatment.