Benign paroxysmal positional vertigo, also known as otoliths, is the most common peripheral vertigo disorder. Its attacks often occur when turning over in bed, lying down or getting up, bending over to wash your head, tilting your head in the shower or looking at the ceiling, with a strong rotational vertigo that usually lasts within 30 seconds and not more than 1 minute, and some patients feel quite frightened and have a sense of near death. If unfortunately you have the above symptoms, please go to the hospital on the day of the attack, and perform nystagmography to confirm the diagnosis, and the treatment of manual reset is feasible, and keep your head from shaking violently after the treatment to avoid the otolith from falling off again. Generally, the attack is often followed by a long period of non-specific dizziness and nausea that lasts for a few hours or even a few days, which can worsen or subside spontaneously.