Colour of your phlegm

If you are coughing and if you want to know whether it's a viral or bacterial infection, you can just take a look at the colour of your own phlegm.

A healthy person should have a clear phlegm.

But if you are coughing and if your phlegm is clear or thin white mucus, then it is an indication of a viral infection.

If your phlegm is yellowish or greenish, then it is an indication of a bacterial infection.

If your phlegm is brown, it is probable there are some blood in it. It could also mean you are a smoker.

If your phlegm is bright red, it is definitely blood.

If your phlegm is black, you are probably a smoker or a coal worker.

If your phlegm is purple, ask yourself whether you have just drunk Ribena.

Anyway always remember the important rule. If you are coughing for more than two weeks, think TB unless proven otherwise.