Conversation: The conversation between human and AI assistant.
[|Human|] I have been spitting up blood. Occasionally. It s been about 5 times in the last 3 weeks. Last night I fell asleep sitting up and got up at 4am and I spit up more than just a speck of blood. It was long streaks of red. My doctors are doing blood work. I m worried this can be something bad. I never was a smoker but fear it could be lung cancer. What can be causing this?
[|AI|]  My advice will be not to get panic. There are many causes for blood in sputum like just severe pharyngitis, Rhinitis, or an episode of epistaxis, or some trivial trauma to oropharynx. There and many other benign conditions can cause blood in sputum. Other causes like chest infection, Bronchiectasis etc. which are non-malignant causes of blood in sputum. Right thing to do at this stage is to investigations, study of your symptoms like whether you had some nose or throat infection (Complete ENT check up), a chest X-ray or CT Scan of Nasal sinuses and chest...and if required bronchoscopy. I think your physician will properly guide you after studying your case to go through the appropriate logarithm of investigation, to reach a definite diagnosis. Best thing to do right now is not to be panic, anxious but to go through proper medical check up and act on your physicians' advice.... All the best !