Otolithiasis is also known as “benign paroxysmal positional vertigo”, so how can there be stones in the human ear? Otoliths in the human body and play what role? Scientific research has confirmed that, in the process of human evolution, the inner ear is divided into two sacs, namely, the spherical capsule and ellipsoidal capsule, because of its structure on the “otoliths” so called “otolithic apparatus”, the main function is to perceive gravity and linear acceleration stimulus to maintain the human body in static dynamic posture and motor balance. The main function of the otolith apparatus is to sense gravity and linear acceleration stimuli in order to maintain the body’s posture and balance in static motion. Inside the otolithic apparatus, there is a gathering area of sensory cells – cystic spot, cystic spot surface has a layer of otolithic membrane, otolithic membrane is adhered to a lot of calcium carbonate-like crystals, that is, otoliths, which is like a piece of cake coated with cream, and the cream is sprinkled with chocolate beans, then these cream is like otolithic membrane, the chocolate beans are like the otoliths. Under normal circumstances, otoliths are attached to the otolithic membrane, when some pathogenic factors lead to otolith detachment, these dislodged otoliths will be in the inner ear is called as the endolymphatic fluid swimming, there is also the possibility of entering the plain no otoliths inside the semicircular canals and ambush, when the human body head position changes, these semicircular canals and the position of the position of the change will occur, the ambush of the otoliths with the flow of the liquid and the movement, which stimulates The hair cells of the semicircular canals are stimulated, leading to vertigo, which is generally short, often less than a minute, only relative to the vast majority of canal stones, and a small number of crural stones often have a vertigo time of more than a few minutes. This symptom is often associated with a change in position and is now paroxysmal, which is known as “benign paroxysmal positional vertigo”. “Otolithiasis is characterized by transient, mainly rotational vertigo that occurs when the head moves rapidly to a certain position. It often occurs in the morning, lying down at night, turning from side to side in bed, bending the head down or looking up, or even during beauty treatments, ultrasound or CT in the hospital. It can occur at any age, but it is extremely rare in toddlers and children, and is usually seen in middle-aged and elderly patients. At present, the pathogenic factors of BPPV are still unclear, and it can be an isolated idiopathic symptom, or it may be triggered by the following factors: 1) otolithosis: when the labyrinth undergoes aging or degeneration, the ellipsoidal capsule cystic spot undergoes degeneration, and the otoliths on the otolithic membrane are detached and re-entered into the semicircular canals, and the three kinds of semicircular canals can be affected, in which the posterior semicircular canals are the most affected; 2) insufficient blood supply to the inner ear: insufficient blood supply to the inner ear is caused by factors such as arteriosclerosis, hypertension, and diabetes. 2) Insufficient blood supply to the inner ear: due to arteriosclerosis, hypertension, diabetes mellitus and other factors leading to insufficient blood supply to the inner ear, the gelatinous membrane on the oval capsule capsule spot is thinned due to nutritional disorders, and otoliths are dislodged into the semicircular canals and deposited therein. 3) Head trauma or ear surgery: this disease can be caused by craniocranial trauma or accelerated movement of the head, such as the whiplash-like injury. 4) Ear diseases: middle ear mastoid infectious disease, vestibular neuritis, viral labyrinthitis, Meniere’s disease in remission, external lymphatic fistula, sudden deafness combined with vertigo and so on can be due to the agglomeration of cellular debris or bilateral vestibular function asymmetry and lead to the development of the disease. 5) Osteoporosis: foreign research in the middle-aged and elderly female BPPV patients, the incidence of osteoporosis The incidence of osteoporosis in elderly female BPPV patients in foreign studies was as high as 75%, while the normal control group was only 4%, which shows that there may be some specific links between osteoporosis and BBPV, and its causative factors still need to be studied in depth. “Due to the sudden onset of otolithiasis, in addition to vertigo symptoms, it also brings panic, dizziness, fear of walking and turning the head, and fear of lying down to sleep, which bring different degrees of impact on the patient’s life and study. However, simple otolithosis is not life-threatening to the patient, and its therapeutic effect is quite certain, with few recurrences or individual differences, so there is no need to worry too much. The main treatment method is otolith repositioning, which is known as the Epley and Roll repositioning method, i.e., artificially changing the spatial position of the inner ear’s semicircular canals through manipulation, so as to drive the otoliths out of the semicircular canals and back to the otolithic apparatus. After the reset, the patient should generally avoid strenuous head movements for 3-5 days, avoid lying on the affected side, and sleep with the head elevated by about 20 degrees.