ADHD is Attention Deficit Hyperactivity Disorder, commonly known as “ADHD”. The main manifestations are: lack of attention, hyperactivity, impulsive deficits and so on. 1. Lack of attention: patients often have difficulty in concentrating on one thing for a long time, and will always be distracted by situations other than what they are doing, and there are shifts in attention. 2. Hyperactivity: the patient often does some aimless activities frequently, and it is difficult to persist in one action. In the crowd performance is active, it is difficult to be quiet, and often accompanied by some small physical movements, such as: shrugging shoulders, twitching the nose, biting the lip and so on. 3. Impulsive Deficiency: It is characterized by a lack of self-control, impulsivity, inability to control one’s own emotions, and a tendency to get into verbal or physical conflicts with others. If the above symptoms appear, consult a doctor in time and do not let them develop, which may cause delay and make treatment difficult.