Cancer does not begin suddenly. It starts quietly, at the cellular level, long before symptoms appear. One of the most powerful triggers for this process is tobacco smoke. Every cigarette introduces toxic chemicals that damage DNA, weaken natural defense systems, and slowly push healthy cells toward cancer.

Understanding how this happens helps people recognize when to consult a cancer specialist and why early medical guidance matters.

This article explains the science in simple terms, guided by clinical insight from

Dr. K. Pradeep Bhaskar,

MBBS, DNB (Radiation Oncology)

FIGRS – Fellowship in Stereotactic Radiosurgery

Consultant Radiation Oncologist