Guide To The Causes Of Black Phlegm

Being sick is scary enough, but add onto it the presence of black phlegm, and it can cause a lot more stress and questions. Phlegm is similar to mucus, but it is produced in the lungs. It can be an indication of a serious condition or caused by dirt or smoke that might be in the air. Therefore, individuals need to make sure they consult a doctor if they experience black phlegm. Some of the conditions that can cause black phlegm are contagious and others need increased medical intervention.