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.