Early onset bipolar disorder in a 5.5 years- old child.

Bipolar disorder is a mental disease that can be presented as irritable mood with affective storms, mixed symptoms of depression and mania, rapid cycles, emotional labiality and irritability during all episodes. A confirmed positive familial history of the disease is the single most robust risk factor for developing the illness. This report presents 5.5 years-old girl with the symptoms of bipolar disorder and with the purpose to draw attention to the diversity of possible symptoms of mood disorders in childhood.