Aphthous ulcers may be small bumps but some may be swollen to larger ones affecting the lips, the walls of the mouth and the tongue. Differentials for
bumps on the
lip may be a mucocele, canker sores and cold sores. At this point, we may rule out the latter two.
Mucoceles are skin colored and they may be a little soft or fluctuant. For some, they may be able to bite on it. They are not painful but they may last for quite sometime. Mucoceles are benign and do not need further intervention.