10. Difficulty Swallowing

We’ve all experienced difficulty swallowing when we’ve got a strep throat or a particularly horrendous cough. But in those cases, the pain fades away after a few days. If you have trouble swallowing food for seemingly no reason, then you might have a mouth or throat cancer. It can also be related to various head and neck cancers such as esophageal, oropharyngeal cancer, thyroid and laryngeal cancers.