I know that when you have oral cancer you can get a white bump, but would there be other symptoms?

Oral Cancer. Oral cancer usually presents with a change in the tissues that form the lining of oral cavity, including the gums. Red, raised lesion in high risk area such as the side of the tongue are most worrisome for cancer. Other symptoms include difficulty swallowing, a lump in the neck, numbness in the oral region, restricted oral opening, and oral pain.
Induration. Before the ' bump ' appear area will be indurated (instead of normal smooth feeling ) to see your doctor or dentist.