Dizziness is a clinical symptom that can be a sign of many diseases, as follows: I. Cerebrovascular diseases: Dizziness is a common sign in neurology and a sign of many diseases in neurology, 1. cerebrovascular diseases, including ischemia of the posterior circulation, such as cerebral infarction or transient ischemic attack. 2. signs of cerebral hemorrhage, the patient can also be accompanied by numbness and weakness of the limbs, swallowing difficulties, etc., which can generally be The diagnosis can be confirmed by CT or MRI of the head; 2. Other medical diseases: Dizziness is also a common sign of other medical diseases. 1. anemia, generally patients with anemia can experience dizziness, accompanied by weakness, dizziness is mainly drowsiness, and hemoglobin can be checked and found to be low. 2. manifestations of kidney disease, such as nephrotic syndrome or chronic renal insufficiency patients can also experience dizziness. 3. 3. Symptoms of cardiovascular diseases, such as premature heart beats, frequent atrial premature beats, ventricular precontraction, patients with dizziness can also have symptoms of panic and palpitations, which can be diagnosed by electrocardiogram or dynamic electrocardiogram; 3. Chronic subjective vertigo: For dizziness, it can also be seen clinically in patients with chronic subjective vertigo. After repeated treatment or search, the cause is not clear; 4. Peripheral vertigo: Dizziness can also be seen in patients with peripheral vertigo, the most common of which is Meniere’s syndrome, where the patient’s dizziness is accompanied by visual rotation, and also in benign positional vertigo, where the patient’s dizziness is obvious when there is a change in position; 5.