How is pulmonary bullae caused?

Bullae may be caused by congenital abnormalities, or by COPD or emphysema. Most bullae do not require special treatment. However, if bullae are secondary to spontaneous pneumothorax, treatment is required, often surgery. In addition, also need to pay attention to chronic obstructive pulmonary disease, emphysema patients caused by limited pulmonary bullae, if the patient has obvious chest distress, breathing difficulties, can also do surgery to remove pulmonary bullae for treatment. After this treatment method is equivalent to doing lung volume reduction surgery, which for relieving the patient chest distress, breathing difficulties symptoms are somewhat helpful.