Spontaneous intracerebral hemorrhage is generally very uncommon in young adult life. Moreover in infancy or childhood. The etiology of spontaneous intracerebral hemorrhage has been discussed in some detail, but the exact underlying causes, in many cases, remain in doubt. The clinical and radiological characteristics are same as ones of intracerebral hemorrhage in adulthood and the traditional methods in diagnostic approach of treatment are still available. We recently experienced a case of spontaneous intracerebral hematoma mainly located in the lateral portion of the basal ganglia in a 12 years old boy. He was admitted to our hospital through the emergency room with suddenly developed left side hemiplegia. There was no evidence of head trauma. Right side carotid angiogram revealed the hematoma. Upon surgery a large hematoma was noted in the lateral portion of the basal ganglia and its complete removal was quite possible. Recovery of the motor disturbance was discernibly rapid and he was discharged on foot on the postoperative 45th day.