Who's at higher risk
The major established risk factors for oral cancer:
- Tobacco use, cigarettes, cigars, pipes, chewing tobacco, snuff (the single largest factor)
- Heavy alcohol use, risk multiplies dramatically when combined with tobacco
- HPV infection, increasingly significant for oropharyngeal cancers
- Prolonged sun exposure, for lower-lip cancers specifically
- Age over 40 (though HPV-related oral cancers are rising in younger people)
- Male, men have roughly double the risk of women
- Personal or family history of cancer
Symptoms that warrant attention
Most early oral cancers don't hurt, that's why they get missed. Look for: a sore, ulcer, or area of irritation that doesn't heal in 2 weeks. A red or white patch anywhere in the mouth that doesn't wipe off. A persistent lump or thickened tissue. Numbness in any part of the mouth or lip that wasn't there before. Difficulty chewing, swallowing, or moving the tongue or jaw. A persistent feeling of something caught in the throat. Unexplained ear pain on one side.
How to do a self-exam
Once a month, in good light, look at every surface of your mouth in a mirror: tongue, gums, inside of cheeks, roof of mouth, under the tongue, and back of throat. Use clean fingers to feel for any lumps or thickening. Check the neck and under the jaw for tender or hard nodes. Most people have asymmetries that have always been there, what matters is anything new or anything that's been there more than a couple weeks.
HPV and oral cancer
Human papillomavirus (HPV), specifically HPV-16, is now the leading cause of oropharyngeal cancers (cancers at the back of the throat and base of the tongue). These tend to occur in younger patients than traditional oral cancers and often present as a painless lump in the neck rather than a mouth sore. The HPV vaccine reduces the risk significantly and is recommended for both boys and girls.
Lifestyle changes that reduce risk
Some risk factors for oral cancer, age, family history, prior HPV infection, aren't under your control. But several are, and small changes meaningfully reduce risk over time:
Quitting tobacco in any form (cigarettes, cigars, vapes, chewing tobacco). Risk starts dropping within months and approaches non-smoker levels after 10+ years. Limiting alcohol, heavy drinkers have 2-3x higher oral cancer risk; the combination of smoking + heavy drinking is multiplicative, not additive. HPV vaccination (talk to your primary care doctor, it's effective into adulthood). Daily sunscreen on the lower lip if you spend time outdoors. A diet with regular fruits and vegetables, protective effect documented in multiple studies. These changes add up over years, not weeks.
Questions about your specific case?
Every patient's mouth is different. The article above covers the general principles, for a personalized recommendation, schedule a consultation with Dr. Sidhu.