Vascular walls are examined by physical examination and auxiliary examination. Physical examination, you can visualize the presence of varicose veins, color changes of the skin of the distal extremities, and the nutritional status of the skin around the blood vessels. Palpation examination of vascular lesions, touching the pulsation of blood vessels, the strength of blood vessel pulsation or pulsation disappearance, the tremor of blood vessels. Auxiliary examination, peripheral vascular first choice of color ultrasound, such as lower extremity arterial ultrasound, carotid ultrasound, is a non-invasive examination, you can observe the arterial stenosis of the arterial vessels, there is no plaque formation. If the ultrasound found that the blood vessel stenosis can also be done vascular CTA examination. Visceral vascular examination includes vascular magnetic resonance imaging, CTA examination. The gold standard of visceral arterial examination can do angiography, such as cerebral angiography, coronary angiography examination, which is invasive. There are many ways to check the blood vessels, and it is important to choose the appropriate method of checking according to the medical advice based on the judgment of the condition.