What is the consequence of having a history of two pneumothoraxes without surgical repair?

A history of two pneumothoraxes without surgical repair typically indicates a significant medical concern. A pneumothorax, which is the presence of air in the pleural space that can cause the lung to collapse, may lead to complications such as recurrent pneumothoraxes.

In the context of medical examinations for commercial driving, having two past occurrences suggests a heightened risk for future episodes, especially since there has been no surgical intervention to mitigate this risk. Given the potential for sudden incapacitation—particularly in a profession that requires full attention, operational control, and safety—this medical history generally results in disqualification.

Ensuring driver safety is paramount, and a history of severe respiratory events without corrective measures presents a risk factor that the regulations aim to address by disqualifying individuals who may pose a danger to themselves or others on the road.