Lung cancer incidence among women under 50 is rising, even among non-smokers, according to a Faridabad oncologist. Factors contributing to this trend include increasing air pollution, prolonged exposure to kitchen smoke from biomass fuels, poor ventilation, passive smoking, and changing smoking habits. Biological factors, such as a higher likelihood of developing adenocarcinoma and genetic mutations in Asian women, also play a role. This rise mirrors a broader trend where lung cancer in women under 65 surpassed that in men in 2021.