<s>[INST] I barely noticed this lump inside my tongue last night. When I try to look at it in the mirror I can t see it but I can feel it with teeth. Its painful when I play around with it but even just moving my tongue around, I feel a slight soreness. This just came out of nowhere and it has not gone away yet this afternoon. Please help me identify what this could be. Thank you. [/INST] Hello, Thanks for consulting ChatDoctorRead your query as you have soft lump like swelling on tongue this can be due to sharp cusps of posterior teeth, It can be lesion due to any habit if you are having, or might be ulceration.Don't be worried so much I will suggest you to consult oral surgeon for examination of tongue and if there sharp cusps go for grinding of teeth. Do warm saline rinses, you can apply ointment like Mugel or McCoppin on tongue by consulting with your local doctor. Hope this will help you. </s>