A genetic vulnerability combined with urban air pollution is creating a hidden health crisis in South India
In a troubling epidemiological shift, doctors across Telangana and Andhra Pradesh are witnessing a surge in lung cancer patients who have never smoked a cigarette in their lives. More alarming? Most of these new patients are women.
This counterintuitive trend challenges the long-standing assumption that lung cancer is primarily a disease of smokers. With tobacco prevalence among women in Southern India remaining below 10 percent, the rising cancer rates point to something far more insidious lurking in the region’s air and genes.
Recent data from India’s National Centre for Disease Informatics and Research reveals that tobacco accounts for only 29.7 percent of female cancers in the region, leaving 70.3 percent completely unrelated to smoking. Hyderabad tops the list with an alarming Age-Standardized Incidence Rate of 6.8 per 100,000 women for lung cancer—among the highest across major Indian cities.
The Telangana Cancer Burden Profile paints a grim picture: the state records over 46,700 new adult cancer cases annually, with women bearing a disproportionate burden. Yet traditional risk factors simply don’t explain these numbers.
The breakthrough came from an unexpected source. A landmark genomic study conducted at Basavatarakam Indo-American Cancer Hospital identified a distinct genetic susceptibility unique to the Telugu population. Researchers discovered that local populations carry specific genetic variations severely impairing their ability to detoxify environmental pollutants and biomass smoke.
In other words, the bodies of non-smoking women in this region are biologically less equipped to defend against airborne toxins—a genetic predisposition that transforms air pollution from a general health concern into a direct cancer catalyst.
Indian cities’ rapid urbanization has created a toxic cauldron. Fine particulate matter (PM 2.5) from vehicular emissions, construction dust, and industrial exhaust penetrate deep into lung tissue, triggering cellular mutations over time. Pulmonologists report an alarming finding: even lifelong non-smokers in highly polluted urban corridors show lungs clogged with black carbon deposits.
Add to this the indoor air pollution from traditional Indian cooking methods—often burning biomass for fuel—and the cumulative exposure becomes devastating.
-Rashmi Kumari
