Oral Cancer: Causes, Symptoms, and Treatment
Medically reviewed by Achuta Uppu, MD, Internal Medicine. Last reviewed: October 23, 2026.
What kind of doctor treats Oral Cancer?
An ear, nose, and throat doctor (an otolaryngologist) or a head and neck surgeon often treats oral cancer. A dentist who does surgery of the mouth, face, and jaw may also help. Doctors who treat cancer, called oncologists, are often part of the team. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What is oral cancer?
Oral cancer includes cancers of the mouth and the back of the throat. It can start on the tongue, on the lining of the mouth and gums, under the tongue, and at the base of the tongue. It is a type of head and neck cancer.
Most oral cancers are squamous cell cancers. These begin in the flat cells that cover the mouth, tongue, and lips. The cancer cells may spread into deeper tissue as the cancer grows.
Symptoms
Oral cancer can cause these symptoms:
- A white or red patch in your mouth
- A lip or mouth sore that won't heal
- Bleeding, pain, or numbness in the lip or mouth
- Loose teeth or dentures that no longer fit well
- Problems or pain with swallowing
- A lump in your neck
- Ear pain
- Trouble moving your mouth or jaw
- Swelling of the jaw
- A sore throat or a feeling that something is caught in the throat
If you have any of these symptoms for more than two weeks, see your health care provider or dentist.
Causes and who gets it
Most oral cancers are related to tobacco use, heavy alcohol use, or an HPV infection. HPV is short for human papillomavirus, a virus that spreads through sex.
Tobacco of any kind raises the risk, including cigarettes, pipes, cigars, e-cigarettes, chewing tobacco, and snuff. Heavy drinking also raises the risk. Using both tobacco and alcohol raises the risk even more.
Other things that raise the risk include:
- Being over age 40
- Being male
- Having had head or neck cancer before
- Getting frequent sun exposure, which raises the risk of lip cancer
- Eating a diet low in fruits and vegetables
- Having inherited changes in certain genes
Oral cancer affects more than twice as many men as women.
How doctors diagnose it
Oral cancer can spread quickly, so finding it early is important. An oral cancer exam can find early signs of cancer. The exam is painless and takes only a few minutes. Your regular dental checkup is a good time to have it.
Your dentist or dental hygienist will check your face, neck, lips, entire mouth, and the back of the throat for signs of cancer. If they find anything unusual, they will suggest more tests or send you to a specialist.
Your provider may use a physical exam of the lips and mouth. They may also take a biopsy, which collects cells from the lip or mouth to view under a microscope. They may also use imaging tests.
Treatment
Oral cancer is treated with surgery. Some people also need radiation therapy or chemotherapy. After surgery, some people also need chemotherapy to kill any cancer cells that are left. Cancer that is further along when it is found may need a combination of treatments.
Targeted therapy is another option. It uses drugs to find and attack cancer cells. Immunotherapy may also be a possible treatment. It works with the body's natural defenses.
The choice depends on your general health, where the cancer began, the size and type of the tumor, and whether the cancer has spread.
Your doctor may refer you to a specialist. Specialists include head and neck surgeons, oral and maxillofacial surgeons, ear, nose, and throat doctors, and medical and radiation oncologists.
Cancer treatment can cause dental problems, so your mouth should be healthy before treatment starts. If possible, see a dentist about one month before treatment starts.
When to see a doctor
See a dentist or doctor if you have any symptoms of oral cancer for more than two weeks. Oral cancer can spread quickly, so early care matters.
Call 911 or go to the emergency room if you have bleeding that will not stop or trouble breathing.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance, while a concierge doctor usually charges more and often works alongside insurance. Either can review your symptoms and refer you to a specialist.
Common questions
Can oral cancer be prevented?
Some steps can help prevent oral cancer. These steps are not smoking, limiting alcohol or not drinking at all, and getting regular dental exams.
Who is more likely to get oral cancer?
People who use tobacco or drink a lot of alcohol are more likely to get oral cancer. The risk is even higher if you do both.
Can a dentist find oral cancer?
Yes, a dentist can check for signs of oral cancer during a regular dental checkup. The dentist or dental hygienist checks your face, neck, lips, mouth, and the back of the throat.
Does oral cancer spread quickly?
Oral cancer can spread quickly. That is why finding it early is important.
Sources
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
