Three adults with asymptomatic calcified chronic subdural hematoma are described. Plain skull x-ray films following head trauma disclosed calcified chronic subdural hematomas and computed tomography (CT) revealed large, frontoparietal, calcified hematomas in all cases. A 49-year-old male received hematoma removal because of his lower age and CT evidence of cerebral compression. An 83-year-old male was not operated on and remained asymptomatic. The third patient died of trauma-related injuries. In the non-elderly, surgery for asymptomatic calcified chronic subdural hematoma with significant cerebral compression should be considered for relief of cerebral compression and prevention of possible future brain damage.