Final answer:
The medical term for coughing up blood is hemoptysis, which is a potential symptom of serious underlying health issues.
Step-by-step explanation:
The medical term for coughing up blood is hemoptysis. This condition should not be confused with other terms such as hematemesis (vomiting blood), melena (black, tarry stools due to bleeding in the gastrointestinal tract), or hematuria (blood in the urine). Hemoptysis may be a symptom of various underlying conditions, such as bronchitis, pneumonia, lung cancer, or tuberculosis.