Research published in JAMA Psychiatry has suggested Obsessive Compulsive Disorder (OCD) is transmitted from parent to child mostly through genetics and not the way a child is raised.
The population register–based study found OCD was transmitted from parents to children largely through a genetic relationship, while rearing appeared to play a minor role. OCD and anxiety disorders were moderately genetically correlated, with the genetic correlation being strongest between OCD and generalized anxiety disorder, intermediate with social phobia and weakest for panic disorder.