A mucous cyst, also known as a mucocoele, is a fluid-filled swelling that occurs on the lip or the mouth. The cyst develops when mucus from the mouth’s salivary glands becomes plugged.
Most cysts are on the lower lip but can occur anywhere inside the oral cavity.
Most cysts are temporary and painless. However, cysts can become permanent if they are not treated.
What Causes Mucous Cysts?
Mucous cysts are most commonly caused by trauma to the oral cavity, such as:
• lip biting (most common cause).
• accidental rupture of salivary gland.
• adjacent teeth causing chronic damage.
• cheek biting Treatments.