Inability to concentrate is a kind of attention disorder, mainly manifested by the inability to direct mental activity to a specific thing or to focus all of one’s energy on that thing, as well as the inability to inhibit attention to irrelevant things. The causes of inability to concentrate are complex and are as follows: 1. Many more serious psychological disorders can cause attention disorders; 2. High levels of stress and anxiety caused by excessive psychological pressure can lead to inability to concentrate disorder; 3. Lack of sleep and insufficient rest for the brain may lead to inattentiveness. If the symptoms of inability to concentrate persist and are more serious, patients need to go to the hospital for examination and treatment after clarifying the cause. Inattention is more common in adolescents and usually manifests itself as being active, unable to sit still, easily distracted, sloppy, and fidgety. If a teenager has this condition, parents should find it in time, help him or her to adjust, communicate with him or her, ask the reason and then solve it together to create a harmonious family environment and learning atmosphere. If communication is not possible or the problem cannot be solved, it is necessary to seek help from the hospital in time.