My son has a dime sized pinkish/red spot on the inside of his mouth/gum.  He went to an oral surgeon who dismissed him when the spot went away within two weeks.  It has been about a month and the red area is back.  Went back to the oral surgeon who still doesnt seem too worried.  Any suggestions as to what this may be?
Thanks for your query, I have gone through your query. The lump what you are feeling could be because of a cystic lesion arising from the salivary gland called manual. Or it can be a Desmond cyst or a hypoglossal cyst. If the diagnosis is confirmed then the cyst can be surgically removed. Consult an oral physician and get yourself examined and get an ultrasound done in relation to the floor of the mouth. It will give an idea about the lesion. Later we can get FNAC done to confirm the diagnosis. The discolored gum like could be because of the gum infection or the black calculus present below the gums will be giving the gums a dark hue. Consult an oral physician and get your teeth cleaned. I hope my answer will help you, take care.