Cough

A cough is a sudden and often repetitively occurring reflex which helps to clear the large breathing passages from secretions, irritants, foreign particles and microbes. The cough reflex consists of three phases: an inhalation, a forced exhalation against a closed glottis, and a violent release of air from the lungs following opening of the glottis, usually accompanied by a distinctive sound. Coughing is either voluntary or involuntary. Frequent coughing usually indicates the presence of a disease. Many viruses and bacteria benefit evolutionarily by causing the host to cough, which helps to spread the disease to new hosts. Most of the time, irregular coughing is caused by a respiratory ... more on Wikipedia

Cough is also found on...

Symptoms of Endocarditis Symptoms of Tuberculosis Symptoms of AIDS Symptoms of Sinusitis Symptoms of Lung Cancer Symptoms of Pectus Excavatum Symptoms of Dust Pneumonia Symptoms of Throat Cancer Symptoms of Tonsillitis Symptoms of Quadriplegia Symptoms of Upper Respiratory Tract Infection Symptoms of Pneumonia Symptoms of Goitre Symptoms of Medullary Thyroid Cancer Symptoms of Stevens-Johnson Syndrome Symptoms of Kaposi's Sarcoma Symptoms of Emphysema