Under normal circumstances, dizziness does not occur with elevated blood sugar alone. However, most patients also have a combination of hypertension and other conditions that can cause dizziness. There are many causes of elevated blood glucose, which may be caused by the recent intake of fatty and sugary foods, resulting in a transient increase in blood glucose, which is usually not accompanied by symptoms such as dizziness. It is usually not accompanied by dizziness and other symptoms. It usually recovers on its own after a regular and light diet. If you are more worried, you can go to the endocrinology department of a regular hospital and get a clear diagnosis after completing relevant examinations. However, in the case of diabetic patients, elevated blood sugar may be accompanied by dizziness and other manifestations. Some patients usually have atherosclerosis and other diseases, which cause insufficient blood supply to the brain, and then dizziness symptoms. Patients need to go to the hospital regularly to monitor blood pressure and blood glucose, and can usually control blood glucose through exercise and diet.