Sudden dizziness and vomiting in a sixty-year-old man may be due to hypertension, benign positional vertigo, acute cerebrovascular disease and other causes. 1. Hypertension: If a 64-year-old man has a history of hypertension and fails to pay attention to regular antihypertensive medication, resulting in unstable blood pressure fluctuations, he may suddenly become dizzy and vomit when his blood pressure rises more significantly, which may also be accompanied by a significant headache and other symptoms. 2. Benign positional vertigo: it is usually caused by a sudden change in the position of the head, resulting in otoliths falling into the semicircular canals, which will not only cause sudden dizziness and vomiting, but also be accompanied by ocular nystagmus and rotating vision. 3. Acute cerebrovascular disease: 60-year-old people with hypertension, hyperlipidemia, cerebral arteriosclerosis and other underlying diseases, sudden dizziness, vomiting, should be alert to the possibility of acute cerebral infarction, cerebral hemorrhage and other cerebrovascular diseases, mainly due to ischemia or hemorrhage of the local cerebral blood vessels, resulting in local cerebral nerves damaged, induced cerebral dysfunction caused by. Other causes should be considered, and it is recommended to consult a doctor in time and standardize the treatment under the guidance of a professional physician.