Bronchorrhea's cause can be varied, stemming from different conditions affecting the lungs.
According to available information, the cause of bronchorrhea can be:
- Idiopathic: In some cases, the cause remains unknown.
- Lung Diseases: Bronchorrhea can be associated with a variety of lung diseases, including:
- Tuberculosis
- Chronic Bronchitis
- Asthma
- Lung Malignancy
Historically, bronchorrhea was heavily associated with bronchioloalveolar cell carcinoma, but this term has been replaced by invasive mucinous adenocarcinomas (IMAs) of the lung.
