“…The rates in Africa and South Asia are much lower [3].Worldwide in 2012,lung cancer occurred in 1.8 million people and resulted in 1.6 million deaths [4].This makes it the most common cause of cancer related death in men and second most common in women after breast cancer [5].Malaysian National Cancer Registry(2007) ,reported 1865 lung cancer cases with male 70.8% and female 29.2% [6].Contributory factors include long-term tobacco smoking(85%) [1],10 to 15% of cases occurred in people who have never smoked [7].These cases are often caused by a combination of factors and exposure to random gas, asbestos, second-hand smoke, or other forms of air pollution [8].The two main types of(cancer) are small -cell lung carcinoma(SCLC) and non-small-cell lung carcinoma(NSCLC) [9].The most common clinical manifestations are coughing (including coughing of blood),weight loss, shortness of breath and chest pain [10].Diagnosis mainly by chest radiographs and computed tomography(CT)scans [1].The diagnosis is confirmed with biopsy by bronchoscopy or CT-guidance [11].Common treatment include surgery, chemotherapy, and radiography [1]NSCLC is sometimes treated with surgery, whereas SCLC usually respond to chemotherapy and radiotherapy [12].Prevention by avoiding risk factors including smoking and air pollution [13].The paper describes current literature, risk factors, and management of lung cancer.…”