While science has come a long way in understanding obsessive-compulsive disorder (OCD), researchers still aren't certain what causes the condition. There are many theories about what causes of OCD, although biological and genetic causes have gained the most acceptance. read more
The cause of obsessive-compulsive disorder isn't fully understood. Main theories include: Biology. OCD may be a result of changes in your body's own natural chemistry or brain functions. Genetics. OCD may have a genetic component, but specific genes have yet to be identified. Environment. read more