Very Rare, we avoid the lateral frontal muscle as much as possible to minimise this complication, however again Anti-Wrinkle Product can diffuse into the adjacent portion of the muscle.

• 极其罕见。我们在注射时会尽力回避外展性额前肌以杜绝该现象。然而较为罕见的病例曾出现由于被注入的肉毒杆菌素扩散引起的眉下垂现象.