Obsessive-compulsive disorder (OCD) - Symptoms and causes ...
Causes. 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.; Learning. Obsessive fears and compulsive behaviors can be learned from watching family members or gradually ...
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