The ultrasonic examination items of the abdominal artery and the lower extremity peripheral artery are those in which 1) evaluation of abdominal aortic aneurysm, 2) evaluation of renal artery stenosis, and 3) evaluation of arteriosclerosis obliterans are routinely conducted. In addition, it is useful as 1) an examination that is directly linked to treatment, 2) an emergency examination such as an aortic aneurysm rupture or an acute artery occlusion, and 3) observation points and correspondences when rare diseases are encountered. In this report, the abdominal aorta and the renal artery, and the lower limb artery, the points of routine examination and the more useful examination will be described.