Left Lung Collapse, No Trauma, No Medical History
Thanks for posting your query. I can understand your concern and dilemma for the chain of events but yes, it is possible for a lung to collapse on its own without any medical condition or trauma to the lungs. It is called primary spontaneous pneumothorax and occurs in people without lung disease. It occurs most often in tall, thin, young people.
It will be very helpful for me in understanding your condition better if you could answer some of these questions:
1) Do you have a history of smoking?
2) Do you have any family history of spontaneous ling collapse (pneumothorax)?
3) Is there any prior history of lung infection, pneumonia, tuberculosis or asthma?
Unfortunately there is a risk of spontaneous pneumothorax to happen again and to prevent this, first of all, smoking is to be stopped (if there is any history). Secondly pleurodesis can be done by video-assisted thoracoscopic surgery (VATS). This is a procedure to stick the lung to the chest wall. You can consult a chest physician or a VATS surgeon and discuss about this procedure.
Moreover you need to get a bronchoscopy and pulmonary function tests done to rule out any lung mass or lung conditions like asthma which can cause spontaneous pneumothorax to happen again.
Hope this answers your query. If you have additional questions or follow up queries then please do not hesitate in writing to us. I will be happy to answer your queries.
Wishing you good health.