Obsessive-compulsive disorder (OCD) is a common, chronic, and long-term psychiatric disorder, with which the individual feels uncontrollable, recurring impulses and urging to repeat behaviors. It is described as a disorder with mental actions that cannot be prevented from repeating itself. Millions of people around the world suffer from OCD. According to 2017 data (WHO), %2,3 of the world population cope with this disorder. In this study, environmental factors including sociodemographic factors and OCD were examined. Sociodemographic factors included age, gender, occupation, marital status, and income. Data were collected from 175 individuals. 72 were male and 103 were female. Sociodemographic data form, Diagnosis DSM-V, Global OCD evaluation and Yale-Brown scale were utilized for data collection. Participants received a psychiatric examination at the beginning. Statistical analysis was calculated to reveal relationships between OCD and sociodemographic factors. According to findings, sociodemographic characteristics and individuals' disorder severity confirmed that a strong relationship existed. The most common obsessions involved contamination and suspicion. Control, cleaning, washing, and avoidance were found among the most common compulsions. OCD severity tended to decline as patients' ages increase. There existed a low correlation between income and OCD discourse, aligned with the previous studies.