Thanks for writing in.
It is unlikely that the growth in your mouth is cancerous. It is likely to be a small mucous cyst
, polyp or retention cyst. They do not occur due to a viral infection or vitamin deficiency
. It occurs due to the blockage of a gland duct.
If they are not causing any symptoms, they do not need to be treated. They can be removed or drained as is the case if they are causing discomfort.