India, Nov. 10 -- While lung cancer is becoming increasingly common, it seldom gets detected in the early stages. This is because the symptoms are not always clear and can present themselves like regular breathing issues.

"A persistent cough is often treated as an infection, an allergy, or a minor irritation of the airways. However, when a persistent cough lasts for weeks, does not improve with usual treatment or gets worse gradually, it should not be ignored, as it can be an early warning sign of lung cancer," Dr Sandeep Jain, consultant, interventional pulmonology at Narayana Hospital, Howrah, told HT Lifestyle.

Dr Jain shared that while a persistent cough does not necessarily indicate lung cancer, changes in the pattern, frequency an...