Result: Mean age was 67.5 years; male / female ratio was 5/1; the most common cause was trauma brain injury (49%); The most common symptom of Chronic subdural hematoma was headache (74.5%), altered mental state (50%), cognitive impairmen (39.2%), hemiparesis (23.9%); hematoma maximal thickness, and midline shift were associated with a higher rate of hemiparesis in CSDH patients (p<0.05); 73.5% of patients had Glasgow ≥ 13, 82.4% of patients had unilateral hematoma.