Behavior that consists of repetitive acts, characterized by the feeling that one "has to" perform them, while being aware that these acts are not in line with one's overall goal. The phenotype is Compulsive behaviors (HP_0000722). Also known as: OCD, Obsessive compulsive behavior, Obsessive compulsive behaviour, Obsessive compulsive disorder, Obsessive-compulsive behavior, Obsessive-compulsive behaviour, Obsessive-compulsive disorder.