<s>[INST] I can feel a soft but firm lump when I put my tung under my top lip. It is under my nose. I do wear upper dentures and use fixadent adhesive every day.I am 55 years old. I just felt it last week.When I take my dentures out it sometimes moves down my lip. [/INST] Thanks for your query, I have gone through your query.The soft lump could be because of the irritation by the denture borders resulting in a growth(epulis fissuratum) or irritational fibroma. Consult a oral physician and get it ruled out. if it is a growth, then it can be surgically removed and the rough denture borders can rounded off.I hope my answer will help you, take care. </s>