With the popularization of knowledge about benign paroxysmal positional vertigo (commonly known as otolithiasis), we often encounter patients with vertigo who come to the clinic and the first thing they say to the doctor is “Do I have otolithiasis? However, after detailed history and examination, most patients do not suffer from otoliths. In fact, typical otoliths can be diagnosed relatively easily without the use of advanced examination equipment. 2. When the attack occurs, there is no obvious tinnitus, ear stuffiness or hearing loss symptoms (or the original tinnitus, ear stuffiness or deafness symptoms are not aggravated). 3. The side lying direction (left-sided or right-sided), which is usually the most preferred for sleeping, is often the side of the disease. After understanding the above characteristics, you can easily “place the right one”. There is no need to panic when you have otoliths. An experienced doctor or technician can help most patients eliminate these symptoms by repositioning the otoliths manually. Carefully recall the onset of the disease, whether it was a spinning sensation or a heaviness in the head, and how long the spinning symptoms lasted. 2. History of previous illnesses: Any previous history of similar symptom attacks and treatment. Any history of hypertension, diabetes, cervical spondylosis, sudden deafness, recent head trauma, etc. 3.After the onset of the disease, whether medication was administered, the name of the medication and the effect of treatment. 4. Organize the existing examination data so that the doctor can easily check them.