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Bumps and growths in the mouth can have a wide variety of causes. Though most are harmless, they do need to be evaluated. In the majority of cases, these bumps and growths will be innocuous in nature and will resolve themselves with little to no treatment.

The area below the tongue, also called the floor of the mouth, is one commonly affected area and any lesion or growth here is also usually painful. Constantly changing conditions within this area -- like temperature fluctuations while eating and drinking, and even tongue movement -- mean that healing can take a little longer than in other places.

Some common causes associated with these symptoms are:


The most likely cause of any sort of growth or swelling is self-inflicted unintentional trauma. This can happen by eating or drinking something that is too hot or too hard. The mucosa below the tongue is not built to withstand this kind of trauma, and reacts easily to this type of thing. It can result in an ulcer, growth or even a swelling.

Canker Sores

Increased stress levels are one of the most common causes associated with the occurrence of Canker Sores. The infection is caused by a member of the herpes virus family, and is extremely common.

It affects the vast majority of people in the world. The clinical presentation will be one of small ulcers and blisters which will be elevated and quite painful. This is a self-limiting disease with only symptomatic treatment required. A topical anesthetic and antiseptic gel is enough to help the patient combat these symptoms.

Some people get multiple attacks of this infection while others may not. Certain nutritional deficiencies like Vitamin B complex and Zinc are also associated with the outbreak of this condition.

Cancerous Growths

Any growth, bump or unusual swelling in the mouth which persists for a long time should be investigated, as you may be dealing with a cancerous growth. Oral Cancer is growing in incidence at a rapid rate around the world, and it can be very destructive and quick to spread to other parts of the body.

A biopsy may be necessary to rule out cancer. Some of the things to look out for are things like an ulcer which does not heal, an increase in the size of a growth or even an increase in the number of growth seen inside the oral cavity.


These are bony protuberances which are found in quite a number of people. These can be large in size or small nodules which can vary in size as well. The area behind the lower teeth as well as the palate are the areas where bony exostosis is most commonly found.

These bony growths are benign and harmless, but they can act as pressure points causing frequent damage to the overlying mucosa. The treatment is to just provide pain relief while the healing takes place, however if this keeps on happening frequently then a minor surgery and bone remodeling may need to be done to alleviate the problem once and for all.

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