The following symptoms often indicate cerebrovascular disease: 1. Dizziness (vertigo): the feeling of spinning, feeling that the house is about to fall down, unable to see people and things, unable to stand up by themselves or so on. This often suggests lesions in the cerebellum, brainstem, inner ear, or possibly cervical spondylosis, resulting in insufficient blood supply to the vertebral arteries. 2. Sudden blackness in front of the eyes: Sudden blackness in front of the eyes all of a sudden, unable to see anything. 3. Numbness and weakness of the limbs: Mostly one limb is weak and numb, and may drop things, such as dropping cups and bowls, unstable chopsticks, loss of balance, unstable walking, etc. This often suggests lesions in the motor area of the cerebral hemisphere and the language center, such as hemorrhage and ischemia in the cerebral hemisphere, or lesions in the cerebral hemisphere caused by other reasons. 4. Slurred speech: difficulty in pronouncing words, inability to speak clearly, inability to express, etc. It often suggests lesions in the language center of the brain, including hemorrhage, ischemia, or others. 5.Severe headache: Mostly a sudden “burst” kind of severe headache, or with convulsions, or with coma, drowsiness, etc.. Mostly suggest aneurysmal subarachnoid hemorrhage.