Is Cancer Hereditary? Understanding Family Risk, Genetic Testing, Prevention, and Modern Treatments By Dr. M. G. Giriyappagoudar Senior Radiation Oncologist, North Karnataka Anvita Onco Clinic, Hubballi
Introduction One of the most common questions asked by patients and their families is: "Doctor, my mother had cancer. Will I also get cancer?" The answer is not always straightforward. While many cancers occur due to lifestyle, environmental exposures, aging, and chance genetic mutations, a small percentage are inherited through families. Understanding whether cancer is hereditary can help individuals take preventive measures, undergo timely screening, and even save the lives of future generations. In this article, we will discuss hereditary cancer, how common it is in India, who should undergo genetic testing, available treatment options, and practical ways to reduce cancer risk for your children and grandchildren. What Does Hereditary Cancer Mean? Cancer develops when genetic changes (mutations) occur in cells, causing uncontrolled growth. Most cancers happen because of mutations acquired during a person's lifetime due to: Aging Tobacco use Alcohol consumption Obesity...