A smoker who coughs a lot with phlegm is a sign of what disease?

Question
Hi doctor, these two weeks, my father has some symptoms such as coughing a lot in the morning, each cough usually has sputum. In addition, my father is also a smoker. So, a smoker who coughs a lot with phlegm is a sign of what disease? Hope the doctor can help me, thank you!
Anonymous question
Answer
Hello,
For the question: What disease is a smoker's cough accompanied by phlegm? The doctor would like to answer the following:
For patients with a history of smoking, persistent cough symptoms, persistent cough can be a sign to see a doctor. Common diseases are: chronic bronchitis, chronic obstructive pulmonary disease, pulmonary tuberculosis, lung tumor. Therefore, I need to take my father to be examined and checked at reputable medical facilities or hospitals of Vinmec Health System nationwide. Based on the test results and radiographs, the doctor can conclude the most accurate disease.
Thank you for trusting and sending questions to Vinmec. Best regards!
Answered by Master, Doctor Nguyen Ngoc Bach - Respiratory Specialist - Respiratory Unit - Allergy and Clinical Immunology - Vinmec Times City International General Hospital.