Long-term dizziness can be examined by MRI, CT, blood test and blood pressure measurement. Long-term dizziness can be seen in Meniere’s disease, cerebral atherosclerosis, hypertension, anemia and other diseases, but also need to determine what tests to do according to different diseases. 1. Meniere’s disease: there are often spontaneous, episodic dizziness, accompanied by hearing damage, tinnitus and ear stuffiness and other symptoms. Joint diagnosis is often required through physical examination, hearing examination, and vestibular function examination. 2. Cerebral atherosclerosis: the blood supply of vertebral-basilar arteries is commonly insufficient, and its typical symptoms are long-term light-headedness and the feeling of stepping on cotton. The typical symptom is chronic lightheadedness and a feeling of being on cotton feet, which is often examined by magnetic resonance imaging (MRI) or craniocerebral CT. 3. High blood pressure: This is often accompanied by dizziness and swelling, and if the blood pressure is too high and not treated in time, there may be a risk of cerebral hemorrhage. Regular blood pressure measurements are often needed. 4. Anemia: The typical symptom of anemia is dizziness, which may be accompanied by loss of appetite, nausea and other gastrointestinal symptoms. It is often necessary to conduct routine blood tests to determine. If any of the above situations occur, please consult a doctor in time for reasonable and standardized diagnosis and treatment.