Dizziness and lightheadedness in people with diabetes should not be underestimated, as it often indicates a pressing problem or a precursor to some disease. Dizziness suggests that you have a new problem that needs to be checked out. Maintaining normal brain function depends heavily on a normal blood sugar supply. Therefore, if a diabetic patient experiences dizziness or lightheadedness, it may indicate the following conditions: High blood sugar levels Some diabetics experience a rapid rise in blood sugar in a short period of time due to infection, diarrhea, vomiting, or eating large amounts of sweets, stopping medication on their own, and reducing their medication dose. If the rise in blood sugar is too fast and too large, the patient may experience dizziness and weakness. It may also indicate that the previous treatment plan is not enough or wrong, and the blood sugar is not effectively controlled, resulting in high blood sugar level. In these cases, it is necessary to go to the hospital to check blood sugar, carry out symptomatic treatment, readjust the treatment plan and so on. Do not control your blood sugar at home, otherwise there is a risk of diabetic coma and stroke. Hypoglycemia High blood sugar is one of the characteristics of diabetes. However, some diabetic patients can experience hypoglycemia under the influence of certain factors. Its main cause is due to too little food, excessive exercise, drug overdose, improper medication, etc. At this time, it is manifested as general weakness, dizziness, panic, cold sweat, etc. Early or mild hypoglycemia may only be dizziness and weakness, while serious hypoglycemia patients can be comatose and even life-threatening. Long-term hypoglycemia can also lead to memory loss, slow reaction, and even accelerate the coming of senile dementia. Therefore, even when you check your blood sugar at home and find that dizziness is caused by hypoglycemia, after eating candy, sugar water and food by yourself to relieve the symptoms, it is advisable to go to the hospital for further examination. Diabetes combined with hypertension The most common manifestations of hypertension are dizziness, headache and insomnia, etc. Dizziness is the most prominent manifestation. About 30% of diabetic patients also have hypertension, which is one of the most common macrovascular complications in diabetic patients. With these complications, patients can experience dizziness due to insufficient blood flow to the brain and oxygen and glucose in the blood. Diabetes combined with hyperlipidemia Hyperlipidemia also often coexists with diabetes. When blood lipids are too high, patients may experience dizziness due to slowed blood flow to the brain, insufficient blood flow and decreased ability to carry oxygen in the blood. Diabetes complicated by cerebrovascular disease (commonly known as ‘stroke’) Patients with diabetes are among the most likely to develop cerebrovascular disease, with a prevalence two to three times that of the non-diabetic population. People with diabetes who experience dizziness should be alert to the fact that it may be a precursor to a stroke, or that a stroke may have already occurred, and therefore requires special attention. In addition, dizziness in diabetic patients may be complicated by coronary heart disease, anemia, kidney disease, and so on. Therefore, diabetic patients who experience dizziness must be highly alert. If you experience dizziness, especially if it is severe or recurrent, you should have a blood glucose, blood pressure, blood lipid, electrocardiogram, cerebral hemogram, head CT or MRI examination.