Febrile convulsions are the main etiology of the occasional convulsions. They occur between 6 months and 5 years. They are short, bilateral, clonic or tonico-clonic. Febrile convulsions are classified in 2 groups: benign febrile convulsions and complicated febrile convulsions. When it exists, the genetic predisposition is a significant factor recurrent of febrile convulsions, but their prognosis remains good. Treatment depends on the diagnosis of simple or complicated febrile convulsions. The treatment of febrile convulsions is intra-rectal diazepam (0.5 mg/kg). The risks of recurrence of convulsions are inversely proportional to the intensity and duration of the fever episode before the convulsion.