<unk>  is the production of more than 100 mL per day of watery sputum. Chronic bronchitis is a common cause, but it may also be caused by asthma, pulmonary contusion, bronchiectasis, tuberculosis, cancer, scorpion stings, severe hypothermia and poisoning by organophosphates and other poisons. Massive<unk>  may occur in either bronchioloalveolar carcinoma, or in metastatic cancer that is growing in a bronchioloalveolar pattern. It commonly occurs in the setting of chest wall trauma, in which setting it can cause lobar atelectasis. __TOC__
Bronchorrhea
Croup
Whooping cough
Rhinosinusitis
Laryngitis
Pharyngitis
Post-nasal drip
Rhinitis