Mucoceles are formed from biting our lips usually during chewing or speaking. It can begin as an ulcer and then progress to become a lump on the lips which can increase in size. It is not a ‘dangerous’ condition but rahter it is more inconvenient. Mucoceles DO NOT disappear by theselves even if they burst once in a wjile. It will reform and grow again. The removal by a simple 30 minutes procedure. Do find out more about mucoceles at this link. https://specialistoralsurgeons.com.sg/clinical-services/mucocele/