M27 here who has been smoking cigarettes from 2020-2022 of about 3 a day and from 2024- till now about 7-8 a day. Has done pft twice now which were normal and done chest xray twice which were normal. Last test were on august 6, 2025. I ALSO DID FIXED LARYNGOSCOPY TEST JN BETWEEN MAY-JUNE 2025 WHICH WAS ALSO NORMAL TOO. So, whenever I clear my throat by inducing cough to check is there anything. After many many times of inducing cough and clearing my throat i get a minuscule amount of blood. I have gotten a minuscule amount of blood like twice from many many times of inducing cough. Other than that there are no symptoms. Is this related to cancer, COPD? Are there any tests which are needed to be done like cancer screening or something?