Vascular disease is a disease in which blood vessels become blocked or rupture for various reasons, causing bleeding, blood supply disorders and local vascular bleeding in the corresponding organs or tissues. The main causes of vascular disease are hardening or spasm of blood vessels, narrowing of intravascular channels, and increase in blood viscosity, which cause blockage of blood vessels and lead to impaired blood supply or rupture of blood vessels due to rupture of hemangiomas or rupture of hardened arterial walls, leading to internal bleeding. The onset of impaired blood supply vascular disease is wide, such as the extremities, heart, head and other parts of the body, due to blockage of blood vessels appear ischemic diseases, including lower extremity atherosclerosis, arterial embolism, myocardial ischemia, myocardial infarction, cerebral infarction, etc. Hemorrhagic vascular diseases mainly occur in the aorta or cranial brain, and include subarachnoid hemorrhage, cerebral hemorrhage, etc. All vascular diseases will have more obvious symptoms, such as dizziness, numbness in hands and feet, cardiac angina, and even ischemic shock caused by sudden bleeding. Patients are advised to observe the symptoms and should seek medical attention promptly.