Obsessive-compulsive disorder is a group of neurological disorders with symptoms such as obsessive-compulsive ideas, compulsive impulses or strongman behavior as the main clinical manifestations. Obsessive-compulsive symptoms generally include: 1. obsessive-compulsive ideas: the patient repeatedly thinks about some thoughts, ideas, memories, emotions and other contents. 2, compulsive behavior: patients repeatedly do some unnecessary behavior, such as repeatedly checking, repeatedly washing hands, repeatedly counting, etc., the purpose is to get rid of or reduce the painful emotions. Specific manifestations are as follows: 1) Patients know that the compulsive symptoms are wrong but cannot be controlled, because once the control is not done, there will be severe anxiety manifestations such as nervousness and panic, and in order to avoid the occurrence of anxiety, patients have to think and do. We call this characteristic conscious self-compulsion and counter-compulsion. (2) The patient is able to realize that the consciousness and impulses of this compulsion come from the self, not from the outside world, and are the product of his or her own thinking. This is the key point in the diagnosis of OCD. Individuals who exhibit the above-mentioned manifestations of feeling significantly distressed emotions for at least one hour a day, or individuals whose normal social or work life is significantly impaired, can be diagnosed with OCD. Of adults diagnosed with OCD, 20% had the disorder as children and 29% had it by adolescence. Note: Obsessive-compulsive symptoms are also relatively common in some patients with psychiatric disorders such as schizophrenia, and are generally considered to be either caused by the disorder itself or as a side effect of antipsychotic medication: pharmacogenic obsessive-compulsive symptoms, with clozapine being the most common, should be seen and treated with appropriate medication if the patient has similar presentations. Of course, medication should only be administered under the supervision of the treating physician and should not be increased or decreased. If it is not convenient for you to visit a doctor, you can choose to consult with him/her by telephone and listen to his/her advice and suggestions. For OCD, the first thing to do is to use medication, and the symptoms improve more obviously. Although the cause of OCD is still unknown, some studies have found that there are biological factors in the development of OCD, just like depression, the imbalance of neurotransmitters in the brain is an important cause of the development of OCD. Current studies have found that: ① Insufficient 5-HT in the brain ② Elevated DA ③ Elevated glutamate ④ Insufficient σ receptor function is the main factor causing OCD, antidepressant and anti-OCD drugs can act on These neurotransmitters normalize the neurotransmitter metabolism in the brain, thus improving OCD symptoms. On the basis of pharmacological treatment, it is equally important to carry out the necessary psychotherapy and to cooperate with regular telephone consultations, so that patients have an objective understanding of their personality characteristics and the disorder they suffer from. cognitive therapy is the search for ways to change thinking, emotions and behavior. Supportive treatment includes empathy, explanation of the relevant pathophysiological phenomena and optimism about the outcome of the treatment is appropriate for all patients.