The patient’s dizziness, hand numbness, and nausea may be caused by cerebrovascular disease, cervical spine disease, or cerebral nerve dysfunction. If the patient is suddenly dizzy and has numbness in one side of the hand, it is considered to be caused by acute cerebrovascular disease. For example, if ischemic cerebrovascular disease, cerebral infarction, transient ischemic attack or cerebral hemorrhage is the cause, it is necessary to immediately consult a hospital to improve the examination and treatment. If the patient has improper posture or has had cervical spine trauma or cervical spine disease, consider the symptoms of dizziness, hand numbness and nausea to be related to cervical spine disease. When a cervical disc herniation compresses the nerve root and vertebral artery, it will cause the patient to have symptoms of hand numbness, dizziness and nausea, especially when the patient is doing the process of turning the head and neck, the dizziness will be aggravated. Many people are prone to brain nerve dysfunction under the condition of poor sleep, exertion and rest, which manifests as dizziness, headache, hand numbness and nausea.