如果2.3年前曾經爆肺(氣腔)，係咪一定唔可以去西藏?!

1. Not necessary.

2. It is always good to have one before.

Pneumothorax has no direct relationship with altitude sickness (except they both involve lung). However, when you go to a place that has potential health concerns, it is always best to consult a professional opinion.

高原海拔高，空氣稀薄，氣壓低，氣胸患者千萬不能冒險，這種環境最容易舊病復發。