It is well known that OCD is a very painful disorder in which patients struggle with their compulsive thoughts for years and years, trying to restrain but unable to get rid of them, feeling unable to control their recurring behaviors that they know are wrong, often mistaking or fearing that others think they are mentally ill, and suffering to the limit of their inner pain. Because the OCD patient’s self-induced struggle does not solve the problem, but rather makes the compulsive symptoms worse, the patient’s confidence continues to decrease. That is why OCD patients often ask their doctors: Is OCD a mental illness? Can OCD be treated? OCD is not a mental illness. Patients often think they have a mental illness because they feel that their thinking and behavior are abnormal; they try to conceal their illness in front of people and even avoid medical treatment. However, concealment and avoidance will only delay the solution of the problem and increase the difficulty of treatment and self-help. Treatment of OCD is certainly not easy, although pathophysiological studies have found that patients with OCD lack a brain component called 5-? hydroxytryptamine, a neuromediator that transmits information, the drug clomipramine (also known as anandamide) and selective 5-hydroxytryptamine reuptake inhibitors (such as fluoxetine, paroxetine, sertraline, etc.), both of which increase 5-hydroxytryptamine in the synaptic gaps of the brain, have an anti-compulsive effect and provide a powerful weapon for the pharmacological treatment of OCD. The efficiency of drug treatment is about 60% to 70%, but there are often more or less side effects. To avoid recurrence of symptoms, even patients who are effective still need to maintain treatment for a long time. Studies of behavioral therapy have shown that effective behavioral therapy can also increase 5-hydroxytryptamine levels in the brain of OCD patients. Therefore, it has been advocated that psychotherapy should be the basic treatment for OCD to address the patient’s psychological problems and to help the patient change his or her personality deviations. The primary obstacle to the use of psychotherapy is the negative attitude of OCD patients toward treatment. They feel that their symptoms are uncontrollable, they are not confident that they will get better, and they are not determined to help themselves. This negative attitude is very harmful and must be changed. As long as they realize that the possibility of self-help is real, help them to build up their confidence, and encourage them to resolve to help themselves, their negative attitude of waiting will be changed. Of course, with the right attitude, OCD patients need to understand their psychological problems, adopt the right self-help methods and adhere to behavioral exercises, the original OCD patient’s state of mind, which is full of hope, can become a village full of hope.