一、定义良性阵发性位置性眩晕(benign positional paroxysmal venigo,BPPV)是头部运动到某一特定位置时诱发的短暂的眩晕,是一种具有自限性的周围性前庭疾病。可为原发性, 也可为继发性。二、BPPV 的临床类型1.后半规管 BPPV;2.前半规管 BPPV;3.外半规管 BPPV; First, the definition of benign paroxysmal positional vertigo (benign positional paroxysmal venigo, BPPV) is the head movement to a specific location induced transient dizziness, is a self-limiting peripheral vestibular disease. Can be primary, but also secondary. Second, the clinical type of BPPV 1. Posterior semicircular canal BPPV; 2. The first half of the regulatory BPPV; 3. The outer semicircular canal BPPV;