Dizziness is a frequent and common clinical symptom that can be seen in severe cerebrovascular disease. First, a neurologist should be consulted to do a physical examination or head-related examination to determine whether it is an acute cerebrovascular disease. If the patient also has neck discomfort and cervical spondylosis, which can be seen as cervicogenic vertigo, he or she needs to be referred to orthopedics for treatment. If the patient also has ear congestion, consider Meniere’s disease, and you can register for otolaryngology. Other medical conditions, such as high blood pressure, hypertension or hypotension, heart failure, or atrial fibrillation, can cause dizziness and can be referred to cardiology. Systemic diseases, such as dizziness and faintness caused by anemia, can be referred to hematology.