OCD is an anxiety disorder. Anxiety can be inherited, though many people now believe that the form your anxiety takes is not genetic. My mother's family has a long line of anxiety disorders. Some of us have OCD, others have generalized anxiety... it depends on the person, but it runs so deeply in the family that that cannot be overlooked. With that said, not everyone will inherit those disorders and there will be some people who get them without there being a strong family history. I'd say your chances of having children with psychological disorders is higher than someone who doesn't suffer from them, but it is not an absolute. If it doesn't run in his family it is very possible they will follow him.