This is often the symptom that alerts patients to come to private practice, and it is the clinical name of coughing up blood. As it grows, cancer cells recruit all nearby blood vessels and create their own. However, new blood vessels have no muscle layer; they are abnormal and very fragile. In time, they start bleeding, and blood in the respiratory tract triggers cough.
Coughing up blood should be differentiated from lung infections, especially tuberculosis. The most common approach is performing an X-Ray and other exams to diagnose the root cause. However, management and interpretation of results should be performed by a physician. So, if you ever experience this symptom go right away to your doctor and do not delay your diagnosis.