Oral Ulcers: When to Worry About Cancer Risks - Dentistry

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Tongue issues (second inquiry)


Hello Dr.
Chuang, I apologize for bothering you again.
I haven't applied any medication for the past two days.
On April 23, the condition of the affected area is as shown in the fourth photo: http://www.wretch.cc/album/show.php?i=bluevigin&b=23&f=1797974735&p=3.
It seems to be improving a bit, but I would like to know your opinion.
Additionally, I have a couple of questions:
1.
If an oral ulcer takes about a month to fully heal, and it has lasted longer than the typical 2-3 weeks, would it be considered for further evaluation due to the potential for malignancy?
2.
If there is a possibility of oral cancer, does that mean the affected area may not heal for more than two to three weeks, and could it worsen or spread to other areas?
If it is not cancerous, the affected area should gradually recover, but the timeline is uncertain, correct?

A Zhe, 30~39 year old female. Ask Date: 2013/04/23

Dr. Zhuang Suhui reply Dentistry


Hello: Some people experience oral ulcers that heal very quickly, in about 2-3 days, while others may take several weeks.
Although the recovery speed varies, it usually does not worsen.
From your photos, it seems that the affected area has decreased in size.
The answers to the two questions you raised are both correct; these are criteria that help us make a judgment.
Personally, I don't think your condition looks like oral cancer, but there have been cases that appeared very unlikely yet turned out to be malignant upon biopsy, although such instances are rare.
If you are still very concerned, you can seek an evaluation from a dentist who specializes in oral surgery, as this would provide a higher accuracy in diagnosis.

Reply Date: 2013/04/23

More Info


When it comes to oral ulcers, particularly those that persist for an extended period, it is understandable to have concerns about potential malignancies, such as oral cancer. Let's break down your questions and concerns regarding oral ulcers and their association with cancer risks.

1. Duration of Oral Ulcers and Cancer Risk: Generally, oral ulcers that last longer than two weeks warrant further investigation. If an ulcer persists for a month or more without signs of healing, it raises the suspicion of a more serious underlying condition, including the possibility of cancer. Oral cancers often present as non-healing ulcers, and the longer an ulcer remains, the more likely it is that a biopsy may be necessary to rule out malignancy. However, it is important to note that not all persistent ulcers are cancerous; they can also be due to chronic irritation, infections, or autoimmune conditions.

2. Signs of Malignancy: If an ulcer is indeed cancerous, it may not only persist but could also worsen over time. This could manifest as an increase in size, changes in color, or the development of additional symptoms such as pain, bleeding, or difficulty swallowing. In some cases, the ulcer may also begin to affect surrounding tissues, leading to further complications. If you notice any of these changes, it is crucial to seek medical attention promptly.

3. Healing Process: If an ulcer is not cancerous, it may still take time to heal fully, depending on various factors such as the individual's overall health, nutritional status, and the presence of any irritants (like rough teeth or dental appliances). Healing can be influenced by lifestyle factors, including diet, stress, and sleep patterns. For instance, a diet high in spicy foods or a lack of sleep can exacerbate oral issues and delay healing.

4. Follow-Up and Monitoring: Regular follow-up with a healthcare provider is essential if you have persistent oral ulcers. If you have already consulted multiple specialists and they have reassured you that the ulcer does not appear malignant, it may be beneficial to continue monitoring the ulcer while maintaining good oral hygiene and avoiding irritants. If the ulcer does not show signs of improvement or worsens, further diagnostic procedures, such as a biopsy, should be considered.

5. Emotional and Psychological Impact: It is also important to acknowledge the emotional toll that health concerns can take. Anxiety about potential malignancies can be overwhelming, especially when you are a caregiver or parent. Seeking support from friends, family, or mental health professionals can be beneficial in managing these feelings.

In conclusion, while the persistence of an oral ulcer beyond two weeks can be concerning and may require further evaluation, not all such ulcers are indicative of cancer. It is essential to maintain open communication with your healthcare providers, follow their recommendations, and seek further evaluation if symptoms change or worsen. Remember, early detection and intervention are key in managing any potential health issues effectively.

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