How does oral cancer lead to brain cancer?

Answer:
usually through the blood but also cancer is an uncontrollable growth of cells that invade and destroy nearby tissue & oral cancer may be located near the brain (cancer eats away at bone)
Lastly i read some where that the stress, & mental unstability of being diagnosed with cancer can cause new cancers in other body parts
First answer by Adolfthegreat. Last edit by Adolfthegreat. Contributor trust: 3 Question popularity: 1 [recommend question].