Lung cancer is among the most common and dangerous variety of cancers. It is one of leading cancer worldwide in terms of mortality. Only about 15% of lung cancer patients survive for five years or more. Researches show smoking is the root cause of almost 85%-90% of lung cancer cases. Lung cancer even develops in people who do not smoke but only got exposed to it. Being exposed to secondhand smoke, arsenic, asbestos, dust, or chemical element can increase your possibilities of obtaining lung cancer. People exposed to radiation at work or elsewhere have a greater probability of acquiring lung cancer.

According to the most recent study, there is a reportedly close to two hundred percent rise in the country's lung cancer burden in barely three years. The report conjointly claimed that from January 2015 to December 2017, 76,543 new patients attended the outpatient department of the National Institute of Cancer Research and Hospital (NICRH). Of them, 35,369 patients were confirmed or had tentative identification of cancer to be enclosed within the final analysis. A total of 5,887 individuals with lung cancer were admitted to the hospital in these three years. As per the report, the figure was 1983 in 2014, indicating a nearly two hundred percent rise in cases in 3 years. Experts attributed the increase in cancer cases to an increase in the number of smokers and pollution levels in Bangladesh. Hence there is have to be compelled to promote awareness of lung cancer symptoms and develop and measure speedy assessment clinics for patients with suspected respiratory organ cancers.