He complained blood in his sputum 15 days back, but upon consulting physician we gone thru chest x-ray , blood test and mentoux test. Mentoux was negative, blood report did not suggest any problem. X-ray was okay. After having antibiotics for a week , we stopped the treatment. Yesterday, while he was sleeping he felt like vomit or cough and woke up to spit then he saw blood coming. We are worried and would like senior doctor to suggest what test we should go for now and which department of doctor will be able to identify this. Please suggest us on this. He is pretty much fine and does not complain any fever or other health issue.