[Psychiatric emergencies in the elderly]

If it is common place to claim that old age is not a disease, however the losses and mournings related to that stage of life generate the production of acute psychopathological disorders. A few of them will be approached and treated as emergencies and required from the physician a good command of their existence and of specificities: atypical depressive disorders stressed by the risk of suicide, sits of delusions some themes of which are typical of senesence, excitement and aggressiveness inherent to dementia. As to the ill-treatment of the elderly often under-diagnosed, it requires urgent interventions both clinical and even juridical.