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Rising lung cancer cases in 40s: Oncologist decodes a disturbing trend, shares early warning signs

Published on: Sep 23, 2025, 15:02:05 IST
There has been a disturbing trend of lung cancer being detected in adults around the age of 40. (Shutterstock)
There has been a disturbing trend of lung cancer being detected in adults around the age of 40. (Shutterstock)
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From early warning signs to the way forward, here's all that you need to know about the sudden surge of lunge cancer in young people.

Lung cancer was once considered a disease that affects older people. But there has been a disturbing trend of lung cancer being detected in adults around the age of 40. In an interview with HT Lifestyle, Dr. Mandeep Singh Malhotra, director of surgical oncology at the CK Birla Hospital, Delhi said, “This shift has become a serious concern, as younger populations are unexpectedly falling prey to the condition.”

Why are younger people at risk?

“The growing burden of environmental pollution, including air, water, and soil contamination, has emerged as a major contributor to lung cancer. Prolonged exposure to toxic pollutants significantly increases the risk of respiratory illnesses and malignancies. Alongside this, substance abuse is a leading factor. Traditional smoking remains the primary culprit, but newer habits such as vaping, hookah, and marijuana use, combined with alcohol consumption, are worsening the problem. Importantly, once someone quits smoking, even occasional indulgence can undo months of recovery efforts, underscoring the need for complete abstinence,” said the oncologist. Also read | Passive smoking can increase lung cancer risk? Pulmonologist lists 5 ways it can harm your lungs

Know the early signs of lung cancer.

Early warning symptoms to know:

“With lung cancer emerging in younger age groups, awareness and early detection are vital. Persistent, unexplained cough should never be ignored, and individuals must seek timely medical evaluation. On a broader level, tackling pollution control and promoting strict avoidance of tobacco and substance abuse are key steps to reducing the rising incidence,” the doctor added. Also read | Oncologist warns ‘air pollution is fueling new wave of Indian cancers’; women who don't smoke are also getting affected

Note to readers: This article is for informational purposes only and not a substitute for professional medical advice. Always seek the advice of your doctor with any questions about a medical condition.

 
ABOUT THE AUTHOR
Tapatrisha Das

Tapatrisha Das is a Lifestyle Journalist at Hindustan Times. She covers health, mental health, relationships, festivals, fashion and travel. She is passionate about narrating interesting stories in the lifestyle space.

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Catch your daily dose of Fashion, Taylor Swift, Health, Festivals, Travel, Relationship, Recipe and all the other Latest Lifestyle News on Hindustan Times Website and APPs.
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