Mucous cysts, also known as mucoceles, are fluid-filled sacs that can develop in the mouth. They are usually caused by a blocked salivary gland and can range in size from small to large. While mucous cysts are generally not harmful, they can be unsightly and uncomfortable. Treatment for mucous cysts typically involves removing the cyst and the underlying salivary gland. This can be done through a simple surgical procedure.
Mucous cysts are a common problem, affecting up to 2% of the population. They are more common in children and young adults. The exact cause of mucous cysts is unknown, but they are thought to be caused by a combination of factors, including trauma to the salivary gland, infection, and blockage of the salivary duct. Mucous cysts can occur anywhere in the mouth, but they are most commonly found on the lower lip and the floor of the mouth.