How Does Blood in Phlegm Arise?
Phlegm often arises when a person coughs. This phlegm is produced as a natural response by the immune system to any kind of irritant in the body. However, phlegm with blood in it occurs sometimes, because, as the phlegm passes through the respiratory tract, it gets tinged with blood, if there is any lung infection. However, this could occur anywhere along the entire length of the respiratory tract and hence, this is a symptom that is not adequate enough to base a diagnosis on, as it is merely an indicator of something being wrong somewhere along the respiratory tract. Read more on phlegm color meaning. Causes of Phlegm with Blood in it There are many causes for coughing up phlegm with blood in it, and these causes range from something as simple as nosebleeds to dire conditions like lung cancer. Given below are the various possible causes of phlegm with blood in it: Bleeding from Respiratory Tracts: Phlegm with blood in it could be seen due to various reasons, including nosebleeds and t
