Vascular garbage is actually a common term. The so-called vascular garbage is actually the plaque, thrombus and other substances that cause blood vessel blockage or affect the blood supply. If there is plaque or thrombus in the blood vessel, if it causes clear narrowing or occlusion of the lumen, it will cause insufficient blood supply or return flow obstruction, and a series of clinical symptoms will appear. 1. If this happens in the arterial vessels, it will mainly cause insufficient blood supply to the distal tissues. For example, the carotid artery will cause insufficient blood supply to the skull, inducing symptoms such as dizziness, headache, transient blackness, etc. In severe cases, it will also cause acute cerebral infarction, causing serious symptoms such as hemiplegia, aphasia, facial palsy, etc. 2. If it is in the coronary artery, it will cause insufficient blood supply to the coronary artery, causing symptoms of coronary ischemia such as angina pectoris and anterior heart discomfort. 3. If it is in the limb artery, it will cause a decrease in skin temperature at the distal end of the limb artery, pallor, numbness, and numbness, If it is in the veins, it will cause swelling and pain in the venous reflux area, and also changes in skin temperature and skin flushing.