8. Bowel Issues
Four-week or longer lasting unexplained changes in the bowel habits can indicate bowel cancer,
especially in older people. In such cases, consult your doctor.
9. Difficulty Swallowing
Problems with swallowing, or feeling chunks of food stuck in your chest or throat that worsen with time,
might indicate throat or esophageal cancer. Other warning signs of these types of cancer include burning
sensation or pain when swallowing food. In most cases, esophageal cancer doesn’t show any initial symptoms,
so don’t ignore these if they do appear. Problems with swallowing can also be one of the initial warning signs of lung cancer.