Getting up and sitting up dizziness, if the symptoms suddenly appear during the process there are several possibilities: 1. It may be caused by insufficient blood supply to the brain due to low perfusion in the brain, which can appear as cerebral ischemia and hypoxia, which may manifest as dizziness, nausea, vomiting, also blackness in front of the eyes, sensory impairment of the limbs, motor impairment, also balance impairment and ataxia, which are usually seen in postural hypotension. 2. The above symptoms may also occur when the body is usually weak and the blood pressure is low. If it is considered to be caused by weakness and low blood pressure, the patient can take oral pulse drink, and at the same time, the patient should be instructed to exercise appropriately to enhance physical fitness and increase vascular elasticity, and if it is considered to be caused by postural hypotension, the patient must be instructed to move slowly during activities, which may reduce the occurrence of symptoms. 3. It is caused by the compression of the transverse foramen by cervical spondylosis, and can also be seen in peripheral vertigo. 4. Otoliths can also occur, and the duration of symptoms varies from a few seconds to 1-2 minutes, and is mainly treated by repositioning.