Otolithiasis can be categorized into idiopathic otolithiasis and secondary otolithiasis. The cause of idiopathic otolithiasis is still unclear, while the common causes of secondary otolithiasis include head trauma, ear diseases, viral neuritis and so on. 1. Idiopathic otolithiasis: the cause of idiopathic otolithiasis is still unclear, it may be related to aging, decreased stability of otoliths, hormonal changes, osteoporosis and other factors. 2. Secondary otolithiasis: secondary otolithiasis is the otolithiasis secondary to other diseases, common diseases such as head trauma such as concussion, other diseases of the ear such as otitis media, viral neuritis, vestibular neuritis. It may also be caused by other reasons, and it is recommended that patients go to the hospital in time to clarify the cause of the disease and then treat it.