7. Difficulty swallowing
If you feel as though food is getting stuck in your throat or you have trouble swallowing for more than two weeks, this can be a sign of throat cancer, lung cancer or stomach cancer.
8. Excessive bruising
A bruise on your shin from bumping into the coffee table is normal. But suddenly getting a lot of bruises in unusual places you don’t remember bumping can indicate various blood cancers.
9. Frequent fevers or infections
Spiking a fever over and over or going immediately from one infection to the next can indicate an immune system that’s been affected by leukemia or lymphoma (Hodgkin’s or non-Hodgkin’s).
10. Oral changes
Persistent sores, lesions or painful areas in the mouth, especially in people who smoke or drink heavily, can indicate various oral cancers.
11. Skin changes
