Oral Mucosa Issues: Soft Lump and Painful Ulcers Explained - Dentistry

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Oral mucosa


I apologize for the inconvenience, but I have a soft lump on the mucous membrane of my left oral cavity.
This soft lump has an ulcer, and it hurts when I touch it with my tongue.
There is also redness and swelling around the lump, and it is painful when I apply oral ointment with a cotton swab, which causes a clear discharge.
Additionally, I am unsure if this soft lump is causing some swelling in a specific area of my left jaw, which is also painful when pressed.
I do not smoke, drink alcohol, or chew betel nut, so I would like to inquire about this.

Mr. Wu, 20~29 year old female. Ask Date: 2022/11/29

Dr. Zeng Guanghui reply Dentistry


It is possible that there is inflammation of the salivary glands within the left oral mucosa, leading to obstruction of saliva secretion.
It is recommended to consult an oral surgeon for further examination.
Director Tseng Guang-Hui, Nantou Hospital Dental Department.

Reply Date: 2022/11/29

More Info


It sounds like you are experiencing a concerning issue with your oral mucosa, specifically a soft lump accompanied by painful ulcers. Based on your description, there are several potential causes for these symptoms, and it is essential to approach this matter with care.

Firstly, the soft lump you are describing could be a mucocele, which is a cyst that forms when a salivary gland is blocked or damaged. Mucoceles are typically painless but can become painful if they become inflamed or infected. The presence of a painful ulcer on the lump suggests that there may be some irritation or secondary infection occurring. The transparent discharge you mentioned could indicate that the area is inflamed or infected, which may require medical attention.

Another possibility is that the lump could be a fibroma or a benign growth resulting from chronic irritation, such as from biting the inside of your cheek or from dental appliances. These growths are usually firm and painless but can become painful if they are traumatized or infected.

Additionally, the symptoms you describe, including the redness and pain around the lump, could indicate an inflammatory condition such as oral lichen planus or a localized infection like an abscess. An abscess can form when bacteria invade the tissue, leading to pus formation, which might explain the discharge you observed.

The swelling in your lower jaw could be related to the lump itself, especially if it is causing localized inflammation. It is also possible that the swelling is due to lymphatic involvement, where nearby lymph nodes react to infection or inflammation.

Given your symptoms, it is crucial to seek a thorough evaluation from a healthcare professional, preferably an oral surgeon or a dentist specializing in oral pathology. They may recommend imaging studies, such as an ultrasound or a CT scan, to assess the lump's characteristics and determine the best course of action. A biopsy may also be necessary to rule out any malignant processes, especially if the lump persists or changes in appearance.

In the meantime, here are some general recommendations to help manage your symptoms:
1. Maintain Oral Hygiene: Keep your mouth clean to prevent further irritation or infection. Use a soft-bristled toothbrush and avoid harsh mouthwashes that may exacerbate the irritation.

2. Avoid Irritants: Since you do not smoke or consume alcohol, continue to avoid any potential irritants, including spicy or acidic foods that may aggravate the ulcer.

3. Pain Management: Over-the-counter pain relievers like acetaminophen or ibuprofen can help alleviate discomfort. However, consult with a healthcare provider before taking any medication, especially if you have underlying health conditions.

4. Warm Saltwater Rinses: Rinsing your mouth with warm saltwater can help soothe the area and promote healing.

5. Avoid Trauma: Be cautious not to irritate the lump further by biting or rubbing against it.

In conclusion, while there are several potential causes for the soft lump and painful ulcers in your oral cavity, a definitive diagnosis can only be made through a professional evaluation. It is essential to address these symptoms promptly to prevent complications and ensure appropriate treatment. Please seek medical attention as soon as possible to get the care you need.

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