If the patient’s blood pressure is not high, but he or she has frequent dizziness, the first consideration is that the patient has cerebrovascular disease, such as cerebral infarction, cerebral embolism, or the patient has acute cerebrovascular insufficiency of blood supply, which can lead to the clinical symptoms and manifestations of frequent dizziness. In addition, patients with chronic cervical spondylosis, especially in patients with a clear history of cervical spondylosis, may also experience frequent dizziness when the second to seventh cervical discs are bulging or herniated. In addition, patients with endocrine metabolic diseases, such as thyroid dysfunction and adrenal dysfunction, may also have clinical symptoms and manifestations. Finally, acid-base imbalance and ionic disorders, such as hypokalemia and hyponatremia, may also cause frequent dizziness without high blood pressure.