Abdominal ultrasound for the health screen was performed in 4610 adults from the Jan. 1993 to Mar. 1995 at Ewha University Hospital Health Clinic. Gross abnormalities were noted in the 33.3% of examined persons. The most common finding was fatty liver(21.6%). And other abnormalities were renal cyst, gallbladder stone, hepatic cyst, and hepatic calcification in the order of frequency. It is concluded that abdominal ultrasound is an important screening modality in the adults.