Does holding my sneeze give me a higher risk of having spontaneous pneumothorax?

Pneumothorax. For normal healthy people, holding a sneeze poses no risk of causing a pneumothorax (collapsed lung). The rare exception is an older individual who due either due to a congenital lung cyst near the lining of the lung, or who has cystic degeration due to emphysema, where the increase in pressure would cause the air fill cyst to rupture and leak out air causing a mild lung collapse.