Symptomau canser yr ysgyfaint? | Cancer Research UK | 2025

While smoking increases the risk of lung cancer, people who don't smoke can develop lung cancer too. That's why it's really important not to ignore ongoing symptoms, no matter what you think may be the cause. Find out more at cruk.org/spotlungcancer Subscribe: https://youtube.com/user/cancerresearchuk Facebook: https://facebook.com/cancerresearchuk Twitter: https://twitter.com/CR_UK Instagram: https://instagram.com/cr_uk

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