Risk Factors
• Human papillomavirus
• Smoking and chewing tobacco
• Heavy alcohol use
• A diet low in fruits and vegetables
• Weakened immune system
• Gender - more common in males
• Sexual behavior - multiple sex partners and exposure to oral sex

Signs and symptoms
Although the following symptoms do not necessarily indicate oral cancer,
if they persist and cannot be attributed to another cause, it is recommended
to seek medical advice.
A sore throat that does not go away
Trouble swallowing
A lump in the neck or back of the mouth or throat
A change in voice, such as hoarseness
Ear pain
A cough
Weight loss for no known reason