Vertigo is often a concomitant symptom of disease, and the triggering factors include hundreds of diseases and medications. The most common “culprits” of vertigo are three main types, namely otogenic problems, cervical spine problems and brain diseases: a. Otogenic problems Clinically, most vertigo is caused by otogenic problems. These patients should be seen by an otolaryngologist. 1. Otoliths: A distinctive feature is that it comes on when the head is in a specific position, most often when the patient suddenly lies down, sits up, turns over or turns his head, and if this position is avoided, the symptoms can be alleviated. Its symptoms come and go in a hurry, usually lasting less than 1 minute, without symptoms such as hearing loss and tinnitus. 2. Meniere’s syndrome: recurrent vertigo is the main cause, accompanied by nausea, vomiting, and also symptoms such as deafness, tinnitus or swelling in the ear. It will recur throughout the year, and with more attacks, the patient’s hearing will get worse. Its episodes can last up to several hours, but will not last more than a day. 3. Vestibular neuronitis: It is usually caused by a viral infection. It is common to have a sudden onset a few weeks after a cold, and it is so aggressive that people are afraid to open their eyes and the patient can only rest in bed, but there is no tinnitus. The symptoms can last for several days or even 1-2 weeks. Secondly, cervical vertigo is sympathetic cervical spondylosis and cervical instability. These patients should go to orthopedic department for consultation. This kind of vertigo is common in computer, clerical, accounting, driver and other practitioners. Symptoms often appear related to changes in head position, such as turning over in sleep, or raising the head once it has been lowered for a long time, but there is no specific angle restriction, and there are usually no cochlear symptoms, which may be accompanied by neck and occipital pain, deep pressure pain next to the cervical spine, numbness and weakness in the arm. When such symptoms are present, a simple x-ray (cervical hyperextension hyperflexion position) is all that is needed to make the diagnosis. There is a simple experimental treatment to verify whether it is cervical instability, i.e., wearing a cervical brace continuously for 2 weeks (except for bedtime and all other daily activities), and the disease can be confirmed if the vertigo attacks are significantly reduced. Thirdly, vertigo induced by brain diseases, i.e. central vertigo, should be seen by a neurologist. This kind of vertigo is usually combined with other neurological symptoms, such as slurred speech, slanting of the corners of the mouth, facial nerve palsy, hemianesthesia, double vision (the scene in front of the eyes seems to have double shadows, one becomes two), and the inability to do subtle movements such as writing. It is often seen in brainstem and cerebellar areas with stroke, brain tumor, encephalitis, and other diseases. The diagnosis can be confirmed by cranial CT or MRI.