Drooling obsessive-compulsive disorder (OCD) is not a professional medical term, which originates from the news, and is a form of obsessive-compulsive disorder (OCD). Obsessive-compulsive disorder (OCD) is a multi-dimensional, multi-factorial disease, there is no precise etiological explanation, the onset of the disease is often associated with the patient’s personality, genetic risk, physiological factors, psychological factors and environmental factors, as follows: 1, genetic factors: it is currently believed that the onset of OCD has a very close relationship with heredity, the first-degree relatives of patients with obsessive-compulsive disorder (OCD) has a high prevalence rate of 4 times that of the general population, that is to say If a person’s parents, children or siblings suffer from obsessive-compulsive disorder, the likelihood that he or she will suffer from obsessive-compulsive disorder is four times higher than that of the general population. 2. Neurobiological factors: patients with obsessive-compulsive disorder suffer from functional abnormalities of the cortex-striatum-thalamus-cortex loop in the brain, and abnormalities of the function of the central nervous system’s 5-hydroxytryptamine, dopamine, glutamate, and gamma-aminobutyric acid-energetic neurons. 3. Social factors: some studies have shown that roughly 2/3 of OCD patients have obsessive-compulsive personality before the onset of the disease. Obsessive-compulsive patients have the following clinical manifestations: 1, do things perfectly, step by step, stick to the rules, organized; 2, very strict on their own requirements, difficult to accommodate, stubborn, poor flexibility; 3, often have a sense of insecurity, dealing with people for fear of negligence or error, often check or reflect on their own actions are not correct; 4, often adhere to the details, and even the minutiae of life should be programmed; 5, negative Emotions and life events, including changes in work and life circumstances, poor interpersonal relationships, increased pressure of responsibility, family discord, loss of loved ones, sudden shock, affecting the emergence and maintenance of obsessive-compulsive disorder. There is also the family atmosphere, which may play a role in the formation of obsessive-compulsive tendencies and symptoms if it is overly demanding, overly stereotypical, and overly repressive, as well as when parents demand too much from their children.