The possibility of otolithiasis is more likely to be considered when the patient turns his/her head at night. The main clinical manifestation of otolithiasis is that the patient suffers from vertigo when he/she suddenly turns his/her head or rolls over, which lasts for a few seconds and then the patient’s symptoms get better. Otolithiasis is also clinically called benign positional vertigo, which is mainly caused by the dislodgment of otoliths in the semicircular canals, and often makes the patient feel like the sky is spinning around, and he is afraid to open his eyes. Clinically, positional evoked test or vestibular function test can be used to make a clear diagnosis, and the treatment often adopts manipulation to reposition the otoliths after the diagnosis is made, and after the repositioning, the patient’s vertigo may be improved significantly. However, it may also recur very quickly, so patients should avoid turning their head to the left or right as quickly as possible after repositioning and try to lie flat to avoid the otolith from coming out again.