The thing in the picture is called oral mucocele or mucous cyst. It is a swelling of connective tissue consisting of a collection of fluid called mucin and it typically occurs because of a ruptured salivary gland duct.
They are usually slightly transparent with a blue tinge and may have recurrent swelling with occasional rupturing of its content.
Mucous cyst needs no medical treatment because it spontaneously resolve on their own after a short time but some mucous cyst or oral mucocele may be chronic which requires surgical removal.
Causes of Mucous Cyst
This occurs when a salivary gland is plugged or injured. Take note that there could be many occurrence of mucous cyst. According to experts, lip bite is the common cause or root cause of mucous cyst.
Piercing in the mouth, use of toothpaste that is not suited to you, and other oral care products can also be a cause of mucous cyst occurrence.
Bad oral hygiene practices are at higher risk of developing mucous cyst. Those who are lip nibbling unintentionally are also have high risk of having mucous cysts.
Signs and Symptoms
The size of mucous cyst varies from 1 mm to several centimeters and is characterized by a raised blister on the inner surface of the lower lip or other areas in the mouth such as anterior ventral tongue, inner side of the cheeks and in the floor of the mouth. It is possible to appear bluish but it is typically slightly transparent.
Mucous cyst may also appear fluctuant but can also be firm. There are also instances that you will feel pain when drinking, eating or talking.
Occurrence of mucous cyst can be repeated and may occur many.
When you have severe mucous cyst, you need surgical removal but you can also treat it with a non-surgical treatment. Rinsing your mouth with salt water for four to six times a day for a few days can effectively ease the pain and inflammation and will gradually heal mucous cyst.