Mouth cancer may look like white patches, red patches, or tongue sores. Unlike noncancerous lesions, they’re not typically painful when they first appear.
Oral cancer can affect any of the working parts of your mouth or oral cavity, which include the:
- tissue that lines lips and cheeks
- front two-thirds of the tongue (the back third of the tongue, or base, is considered part of the oropharynx, or throat)
- floor of the mouth (underneath the tongue)
- roof of the mouth
Although your teeth can’t get cancer, surrounding cancer can affect them.
This article reviews what oral cancer looks and feels like, and when to seek medical help.
Is oral cancer painful?
Oral cancer in its early stages is not typically painful. For example, an ulcer in your mouth that doesn’t heal is a common symptom, but it isn’t always painful. It may just feel like a rough patch.
The MD Anderson Cancer Center recommends seeing a dentist or a doctor if you have a sore in your mouth that doesn’t hurt and doesn’t heal within a few weeks.
As oral cancer progresses, you may begin to notice persistent pain, discomfort, or swelling in your mouth.
The flat cells that cover the surfaces of your mouth, tongue, and lips are called squamous cells.
A white or red patch inside your mouth or on your lips may be a potential sign of squamous cell carcinoma.
What is important to note is whether these changes persist. Noncancerous lesions tend to resolve in a
Bright red patches in your mouth that look and feel velvety are called erythroplakia. They’re often precancerous, meaning they can become cancerous. According to a 2022 systematic review, about
Still, it’s best not to ignore any vividly colored spots in your mouth. If you have erythroplakia, a dentist will take a biopsy of these cells.
A white or grayish patch inside your mouth or on your lips is called leukoplakia. The patches may be rough and hard and difficult to scrape off.
Causes of cell growth that produce these patches
- an irritant, like a rough tooth, broken denture, or tobacco
- chewing the inside of your cheek or lips
- exposure to carcinogenic substances
Leukoplakia generally develops slowly, over a period of weeks or months.
Mixed red and white patches
A mixture of red and white patches in your mouth, called erythroleukoplakia, is an abnormal cell growth that’s more likely to become cancerous. You may see these patches before you feel them. In the early stages, mouth cancer may cause no pain.
How to check for early signs of oral cancer
You may find erythroplakia anywhere in your mouth, but they
Check your mouth carefully once a month for any irregularities. Use a magnifying mirror under a bright light to get a clear view.
Pull your tongue out gently with clean fingers and inspect underneath. Look at the sides of your tongue and the insides of your cheeks, and examine your lips inside and out.
Know how to distinguish a canker sore from something more serious. A canker sore inside your mouth often burns, stings, or tingles before it’s visible.
In the early stages, mouth cancer rarely causes any pain. Abnormal cell growth usually appears as flat patches.
A canker sore looks like an ulcer, usually with a depression in the center. The middle of the canker sore may appear white, gray, or yellow, and the edges may be red.
Canker sores are often painful, but they aren’t malignant. This means that they don’t become cancerous.
Canker sores usually heal within
If you suspect you have oral cancer, see a dentist or doctor. The
They’ll also ask you about your symptoms. Other symptoms of mouth cancer may include:
- mouth pain
- difficulty swallowing
- difficulty speaking
- unexplained weight loss
If a healthcare professional detects anything suspicious, they may perform a biopsy to check for cancerous cells. This may involve cutting off a thin layer of the sore or collecting cells from the sore with a special
A regular dental checkup
Prompt treatment reduces the likelihood that precancerous cells will become malignant.
You can also reduce your risk of developing mouth cancer by avoiding tobacco products, including “dip,” “chew,” and cigarettes, all of which
Sores in your mouth are usually not cancerous. Still, it’s a good idea to see a doctor or dentist if you notice white, red, or mixed patches in your mouth or on your lips that don’t go away after a few weeks.
They can determine if the lesion or sore in your mouth is cancerous or noncancerous.