- Frequency and duration of the cough.
- Type of material being coughed up (mucus or phlegm, blood).
- Colour of the sputum (white, clear, green, yellow, pink, blood–specked).
- Consistency of the material coughed up (thick, thin, frothy).
- Presence or absence of accompanying pain.
The main symptom is involuntary coughing. It could be accompanied by other symptoms like fever, difficulty in swallowing, throat ache, pain in the ribs etc. More important than the cough itself, are aspects of it that provide clues to its causes: