Dizziness after getting up is a common clinical symptom, mainly seen in the following diseases: First, episodic benign positional vertigo, also known as otoliths, is mainly seen in elderly patients. The disease mainly manifests as vertigo that appears suddenly when the position changes, but with symptoms such as rotation of vision, nausea, vomiting, and panic. Usually the symptoms do not last more than 5 minutes, and each attack can be induced by a change of position. Patients are advised to visit the ENT department and have their otoliths reset if necessary. Secondly, cervical spondylosis, which is mostly seen in middle-aged and elderly patients, often with a history of prolonged ambulatory work or heavy physical labor, may also be accompanied by headache, discomfort in the back of the neck, numbness of the upper limbs and other symptoms. Patients are recommended to perform cervical spine CT or cervical spine MRI, and if necessary, they can go to orthopedics for consultation. Thirdly, postural hypotension, which is mostly seen in weak or anemic patients. Patients are advised to get up slowly and wear elastic stockings if necessary. Fourth, acute cerebrovascular disease, mostly seen in elderly patients, often accompanied by dizziness, weakness of limbs, sensory impairment, choking and coughing of drinking water, etc. Patients are advised to consult the neurology department.