[en] Age Factors ; Antidepressive Agents, Tricyclic/therapeutic use ; Belgium/epidemiology ; Diagnosis, Differential ; Drug Therapy, Combination ; Humans ; Obsessive-Compulsive Disorder/diagnosis/drug therapy/epidemiology/etiology ; Prevalence ; Psychiatric Status Rating Scales ; Risk Factors ; Serotonin Uptake Inhibitors/therapeutic use ; Severity of Illness Index
[en] Obsessive compulsive disorder (OCD) is a frequent and disabling psychic illness. Along psychiatric history, several etiological models have been successively hypothesized to explain the obsessive compulsive symptoms from a psychological, behavioural or biological point of view. This review aims at presenting OCD etiological models as well as describing OCD clinical and therapeutic aspects.