Oral cancer affects roughly five thousand Canadians a year. It is not common, but it is frequently caught late, and that is what makes it dangerous rather than the disease itself being unusually aggressive.
Most of it is preventable. Tobacco and alcohol account for the large majority of cases, and both are things you can act on. The rest of this article covers who is most at risk, what to look for, and when something is worth getting checked.
Understanding Oral Cancer
Oral cancer refers to the abnormal growth of cells in the mouth, lips, tongue, throat, or gums. It can be life-threatening if not detected and treated early. The key to improving survival rates is early diagnosis through regular screenings and awareness of risk factors.
Who is at Risk for Oral Cancer?
Here are the primary risk factors:
1. Tobacco Use
Smoking cigarettes, cigars, or pipes and using chewing tobacco significantly increase the risk of oral cancer. Tobacco contains harmful chemicals that damage the cells in the mouth and throat, leading to mutations and abnormal growth.
2. Excessive Alcohol Consumption
Heavy alcohol consumption is a major risk factor on its own. Combined with tobacco it is considerably worse than either alone, because alcohol makes it easier for the harmful compounds in tobacco to reach the tissues of the mouth.
Together these two account for the large majority of oral cancer cases. Canadian public health data attributes more than 80 percent of oral cancers in some regions to alcohol and tobacco use. If you do only one thing after reading this, addressing those two is the one with the most effect.
3. Vaping
The honest answer is that nobody knows yet. Vaping has not been in widespread use long enough for oral cancer data to exist, since these cancers typically take decades to develop. Vapour does contain compounds known to damage cells in the mouth, and effects on gum health are already documented. Treating it as an unknown rather than as safe is the reasonable position.
4. Human Papillomavirus (HPV) Infection
HPV is a very common sexually transmitted infection. In a small number of cases it persists, and certain strains, HPV-16 in particular, are linked to cancer at the back of the throat, the tonsils and the base of the tongue. This area is called the oropharynx, and it is a slightly different site from the oral cavity itself.
The distinction matters because HPV-related cases have been rising in Canada while tobacco-related cases have been falling, and they tend to affect a younger group of patients, more often men, many of whom have never smoked. They also generally respond better to treatment.
5. Betel Quid and Areca Nut
Chewing betel quid, areca nut, paan or gutka is strongly linked to oral cancer and is classified as carcinogenic to humans. The risk is present whether or not tobacco is added to the mix. These products are used in a number of communities across Canada and the risk is not always widely known among people who use them.
6. Prolonged Sun Exposure
Frequent and prolonged exposure to the sun without protection can lead to lip cancer. Using lip balm with SPF and wearing hats can help reduce the risk.
7. Oral Health and Nutrition
A diet low in fruits and vegetables has been associated with higher oral cancer risk, and poor oral health shows up repeatedly in the research as a contributing factor, though the evidence here is not as strong or as direct as it is for tobacco and alcohol.
It is worth treating this as a reason to keep up good habits rather than as a cause on the same level as smoking. Ongoing gum disease is worth treating on its own terms regardless.
8. Genetic Factors and Family History
If you have a family history of oral or other types of cancer, your risk may be higher. Genetics play a role in cancer development, so regular screenings are essential.
9. Age and Gender
Oral cancer is more common in people over 40, although younger individuals are increasingly being diagnosed due to HPV infections. Men are twice as likely to develop oral cancer as women.
Warning Signs of Oral Cancer
Recognizing early symptoms of oral cancer can lead to timely treatment and improved outcomes. Here are the common warning signs:
Before going through these, some perspective. The overwhelming majority of mouth sores, lumps and patches are not cancer. Canker sores, cheek bites, irritation from a denture or a sharp filling, and ordinary infections account for almost all of them, and almost all resolve on their own.
What matters is not whether you have one of these signs. It is whether it persists. Anything that has not healed in two weeks should be looked at. That is the threshold worth remembering.
Unexplained Sores or Ulcers
Persistent sores in the mouth that do not heal within two weeks could be a sign of oral cancer. These sores may be painless at first but can become tender over time.
Red or White Patches
Red (erythroplakia) or white (leukoplakia) patches inside the mouth, on the tongue, or on the gums should not be ignored, as they can be precancerous lesions.
Lumps or Thickening in the Mouth
A lump, thickening, or rough spot in the mouth, throat, or lips could indicate abnormal cell growth.
Difficulty Chewing or Swallowing
If you experience trouble swallowing, chewing, or moving your tongue and jaw, it may be a sign of oral cancer.
Persistent Hoarseness or Sore Throat
A chronic sore throat or a change in your voice, especially hoarseness that lasts for weeks, may indicate an underlying issue.
Ear Pain Without Infection
Pain in one ear without any signs of infection could be a symptom of oral cancer, particularly if accompanied by other symptoms.
Numbness or Pain in the Mouth
Unexplained numbness, pain, or tenderness in the mouth, lips, or tongue should be evaluated by a dentist or healthcare professional.
How to Check Your Own Mouth
This takes about two minutes and is worth doing once a month, in good light in front of a mirror.
- Pull your lips out and look at the inside surfaces and the gums, top and bottom.
- Check the inside of each cheek, pulling it away from your teeth.
- Stick your tongue out and look at the top, then lift it and look underneath.
- Gently pull your tongue to each side and look along the edges. This is where oral cancer most often starts.
- Tilt your head back and look at the roof of your mouth.
- Feel along both sides of your neck and under your jaw for lumps.
You are looking for anything new that stays: a patch of unusual colour, a lump, a rough area, or a sore that is not going away. If something has been there for two weeks, book an appointment.
Importance of Regular Oral Cancer Screenings
Oral cancers are often noticed first at a dental appointment rather than by the patient, because a dentist is routinely looking at areas you cannot easily see yourself, including under the tongue and at the back of the throat.
Early detection is crucial in improving outcomes for oral cancer. A professional screening can identify abnormal tissue changes before they develop into advanced cancer.
What Happens During an Oral Cancer Screening?
A screening is part of a routine checkup rather than a separate appointment. Your dentist looks over the inside of your mouth, your tongue including underneath and along the edges, the roof and floor of your mouth and the back of your throat, and feels along your neck and jaw for anything unusual. It takes a couple of minutes.
If something looks worth watching, the usual next step is not a biopsy. It is a second look in two to three weeks, because most things resolve on their own in that window. If it is still there, or if it looks concerning from the start, you may be referred for a biopsy or to a specialist.
This is worth knowing because it removes the main reason people avoid mentioning symptoms, which is the assumption that raising it triggers something drastic.
For statistics and detailed information on oral cancer in Canada, the Canadian Cancer Society is the best source.
Prevention Tips to Lower Your Risk
- Avoid Tobacco and Limit Alcohol: Reducing or eliminating tobacco and alcohol consumption can significantly lower your risk. This is by far the highest-impact change on this list.
- Practice Good Oral Hygiene:Brushing and flossing daily and keeping up regular cleanings and checkups can help prevent oral health issues.
- Eat a Healthy Diet: A diet rich in fruits and vegetables provides essential nutrients that support a strong immune system.
- Consider HPV vaccination: The HPV vaccine protects against the strains most associated with these cancers. In British Columbia it is publicly funded for eligible age groups, and available privately otherwise. Your physician or pharmacist can tell you whether you qualify.
- Use Sun Protection: Wear SPF lip balm and avoid excessive sun exposure to reduce the risk of lip cancer.
Schedule an Oral Cancer Screening Today
Your oral health is a crucial part of your overall well-being. If you are looking for a trusted dentist in Kelowna, Discover Dental offers comprehensive oral cancer screenings as part of your regular care.
If something in your mouth has been there longer than two weeks, or you would just like a screening as part of your next checkup, book an appointment or call us at (778) 477-5554.
