There are many aspects of the causes of dizziness, vomiting and cold sweats in patients, which should be analyzed in conjunction with the triggers of the onset of the patient and the underlying disease: First, if an elderly person has cerebral arteriosclerosis, cerebral vascular stenosis, and suddenly develops dizziness, vomiting and cold sweats, it should be considered to be caused by cerebral vascular spasm and insufficient blood supply to the brain. Secondly, if the patient has dizziness, vomiting and cold sweat while riding on transportation, it should be considered to be caused by the reaction of motion sickness or seasickness. Thirdly, if the patient has dizziness, vomiting and cold sweat during the process of getting up suddenly, it should be considered to be caused by postural hypotension. Fourth, if the patient has symptoms when hungry, consider it caused by hypoglycemia, which can be corrected by eating.