Sputum colour: a useful clinical tool in non-cystic fibrosis bronchiectasis. Murray et al, Eur Respir J 2009, DOI: 10.1183/09031936.00163208 Colour of phlegm can predict outcomes for patients with ...

The sample was assessed by one of three laboratory staff, and the macroscopic appearance of the majority of the sample was allocated a sputum number by reference to a standard color chart.

The mucus in your nose serves many functions. Its colour can tell you and your doctor a lot about what’s going on in your body. While this is not enough to diagnose anything outright ...