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Lung cancer is becoming more common among young, healthy women

Lung cancer diagnoses in young nonsmoking women are rising due to radon, air pollution, and genetics, with 20% of new cases in never smokers, experts say.

  • Health experts report lung cancer is rising among young women in the United States, with up to 20% of new diagnoses in people who have never smoked, the Centers for Disease Control and Prevention says.
  • Experts point to radon, air pollution and genetic mutations as main drivers, with radon forming when uranium, thorium and radium break down and seep into homes, the U.S. Environmental Protection Agency says.
  • Christy Houvouras, a 36-year-old mother who smoked fewer than 20 cigarettes, was diagnosed in July after noting a swollen area at a routine checkup and had surgery removing about 20% of her lung.
  • Current screening guidelines focus on people with smoking histories, leaving many nonsmokers at risk of late diagnosis, and doctors urge nonsmoking patients to advocate for their health, citing Dr. Iona Baiu.
  • Experts note the historical association with older male smokers is changing, as lung cancer remains the second most common cancer in men and women in the United States, with slower incidence declines in women, and early-life exposures causing tumors decades later.
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Experts point out that the increase in lung cancer in non-smokers is mainly due to radon, air pollution and genetic mutations

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USA Today broke the news in United States on Monday, November 10, 2025.
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