Otolithiasis can be diagnosed by typical symptoms, positional tests, and imaging tests. 1. Typical symptoms: Patients with otolithiasis may experience the typical symptom of vertigo, which is characterized by strong rotational vertigo, usually of short duration, and in most cases not exceeding one minute. Vertigo often occurs when there is a change in position, such as a change in sitting or lying position. 2. Positional tests: including the Dix-Hallpike test, roll test, etc. The Dix-Hallpike test is used to determine benign paroxysmal positional vertigo in the anterior or posterior semicircular canal, and the roll test is used to determine benign paroxysmal positional vertigo in the external semicircular canal. 3. Imaging: It is not a routine test for otolithiasis and is usually used as an aid in the diagnosis of atypical or refractory vertigo. Patients should not diagnose otolithiasis on their own, and should consult a doctor for diagnosis when symptoms of discomfort occur.