OCD is a type of anxiety disorder, a group of neuropsychiatric disorders with obsessive-compulsive thinking and compulsive behavior as the main clinical manifestations, characterized by the coexistence of conscious obsessions and counter-compulsions, some meaningless or even against their will thoughts or impulses repeatedly invade the daily life of patients. Although patients experience these thoughts or impulses as originating from themselves and try to resist them, they are always unable to control them. The symptoms of OCD can be summarized as obsessive-compulsive thinking and compulsive behavior. Obsessive-compulsive thinking can be divided into obsessive-compulsive ideas, obsessive-compulsive emotions and obsessive-compulsive intentions. The content is diverse, such as repeatedly wondering whether the doors and windows are closed, whether you will get sick if you touch something dirty, why the sun rises in the east and sets in the west, and the urge to jump down when standing on the balcony. Compulsive behaviors are often actions that have to be taken in order to reduce the anxiety generated by obsessive-compulsive thinking, which the patient knows is irrational but has to do. Some patients with prolonged illness often repeat certain actions, and over time a certain procedure is formed, such as washing hands from the fingertips, continuously washing to the wrist, and if the order is reversed or interrupted in the middle, they have to start washing again, which often takes a lot of time and is painful. Compulsive symptoms have the following characteristics: 1, the patient’s own thinking or impulses, rather than imposed by the outside world. 2. There must be at least one thought or action that the patient is still trying in vain to resist, even if the patient is no longer resisting the other symptoms. 3, the idea of implementing the action itself will make the patient feel unpleasant (purely to relieve tension or anxiety is not considered pleasant in the true sense), but if not implemented will produce great anxiety. 4. The idea or impulse always recurs unpleasantly. The onset of OCD is related to psychosocial, personality, genetic and neuroendocrine factors, the first two of which can be intervened to prevent problems before they occur. As parents, they should build a stable, safe and harmonious living environment for their children, should not be overly demanding, can be more flexible in their life dealings, focus on mutual communication, and promote the construction of a sound personality. OCD self-screening: 1. Do you have stupid, dirty or scary unnecessary thoughts, ideas or impulses? 2. Do you have an excessive fear of dirt, germs or chemicals? 3, are you always worried about forgetting something important, such as the door is not locked, the valve is not turned off and something happens 4, are you worried that you will do or say aggressive behavior or aggressive words that you do not want to do? 5.Are you always worried that you will lose something important? 6.Do you have to do something repeatedly, or have any idea must be repeatedly thought so as to get relaxed? 7.Do you over-bath or over-wash things? 8, do you have to do a thing must be repeated to check a number of times to rest assured? 9, do you avoid certain occasions or individuals for fear of aggressive language or behavior that hurts others? 10.Do you keep a lot of useless things that you think you can’t throw away? If one or more of the above symptoms persist and are troubling your life and making you feel miserable, don’t fight alone, consult a professional doctor to help you overcome OCD together.