How to Prevent Oral Cancer
Oral cancer isn't entirely preventable — some risk factors, like age and genetics, aren't in your control. But the biggest ones are. Here's what the evidence actually supports.
Quit tobacco — any form
Tobacco use is the single biggest modifiable risk factor for oral cancer. That includes cigarettes, cigars, pipes, chewing tobacco, and snuff. The good news: risk drops measurably within a few years of quitting, and long-term ex-users approach the risk level of those who never used tobacco.
Limit alcohol — especially with tobacco
Heavy alcohol use is an independent risk factor, but the combination of tobacco and alcohol doesn't just add the risks — it multiplies them. If you drink, keeping to moderate levels (up to 1 drink/day for women, 2 for men) meaningfully lowers your risk compared to heavy use.
Get vaccinated against HPV
Gardasil 9 protects against HPV-16 and HPV-18 — the strains behind most HPV-related throat cancers. It's FDA-approved for ages 9–45 and most effective before HPV exposure. Adults who weren't vaccinated as teens can still benefit. Ask your doctor if you're a candidate.
Learn more about HPV and oral cancer →Get regular dental checkups
A routine dental visit includes a 2-minute oral cancer screening — your dentist checks your lips, gums, tongue, cheeks, palate, and throat. Most early-stage oral cancers are found this way. For people who skip dental care, cancers are more often caught at later stages when outcomes are worse.
Find dental care near you →Protect your lips from the sun
Chronic sun exposure is a leading cause of cancer of the lower lip — a risk that's easy to overlook. Wearing SPF lip balm (SPF 30+) and a wide-brimmed hat when outdoors makes a real difference, especially for people who work outside. Lip cancer is highly treatable when caught early.
Do a monthly self-exam
Prevention isn't just about avoiding risk — it's also about catching changes early. A monthly 2-minute self-exam of your mouth and throat means you notice anything unusual before it becomes serious. Most people have never done one.
Learn how to do a self-exam →What you can't fully control
Age, sex assigned at birth, family history, and immune status all affect oral cancer risk and aren't modifiable. If you have multiple non-modifiable risk factors, that's a reason to be more diligent about the ones you can control — and to talk to your dentist about your screening schedule.
Common questions
Can oral cancer be prevented?+
Many cases are preventable. The biggest modifiable risk factors are tobacco use, heavy alcohol consumption, and HPV infection — all of which can be addressed. Avoiding tobacco is the single most impactful step. Regular dental checkups also catch early changes before they become cancer.
Does quitting tobacco lower oral cancer risk?+
Yes, significantly. Tobacco use is the leading cause of traditional oral cancers. Risk begins to drop within a few years of quitting, and long-term ex-smokers approach the risk level of people who never smoked.
How does the HPV vaccine help prevent oral cancer?+
The HPV vaccine (Gardasil 9) protects against HPV-16 and HPV-18 — the strains behind most HPV-related throat cancers. It's FDA-approved for ages 9–45. Population data already shows reduced HPV-related cancer rates in vaccinated groups.
How often should I get an oral cancer screening?+
For most people, once or twice a year at a routine dental visit is enough — the screening is included at no extra cost. People with elevated risk factors (tobacco, heavy drinking, HPV history) may benefit from more frequent checkups.
Does sun exposure cause oral cancer?+
Yes, specifically for lip cancer. Chronic sun exposure is a leading cause of lower lip cancer. SPF lip balm and a wide-brimmed hat when outdoors significantly reduce this risk, especially for people who work outdoors.