Lump by my back tooth and yellow tongue, what could this be?

See a dentist. Lump by itself or yellow tongue is not an illness, but a symptom for a range of medical conditions and evaluation and x-rays by your dentist is warranted.
You need to be seen. .. By a dentist to answer this. It could be normal anatomy or evidence of a problem requiring treatment.

Related Questions

I tried to what I think was a pimple I didn't see it and now it's gotten bigger on my cheek, like a lump it hurt when I touch it and now my back tooth?

See a physician. It sounds like you have an infection in your face that is getting worse. You should be evaluated at your nearest hospital emergency room to make sure the infection is controlled quickly. Read more...
Dental abscess. May be draining fistulous tract from an infected/abscesses tooth. See both Dentist and Physician immediately. Serious infection requires immediate treatment. Read more...

After all my upper left teeth were extracted a month ago today I noticed there is a pea size or bigger hard lump on the outer side on the back tooth?

Bone defect. Surgical removal of multiple teeth in the maxillary region can create an alveolar bone defect. Tooth extraction is a traumatic procedure initiating a complex cascade of biochemical and histologic events that inevitably lead to a reduction of alveolar bone, soft tissue and bone defects (exostosis). These defects will be addressed before future teeth emplacement. Read more...
Post extraction. Healing , specially multiple teeth creat a boney crater with raised edges, a month is not enough for complete healing and tissues might fill in and turn into bone latter, if implants are intended for example, you might need a bone grafting and ridge augmentation before the ridge be able to receive any implants. Read more...
Bump post ext. If the lump is hard and feels like i tis moving under the tissue it may be a boney sequestrum--sort of like a bone splinter. It may also be a subperiosteal infection. When in doubt--go back the dentist who extracted your teeth for a follow-up ASAP. . Read more...
Post extraction. You will feel bumps as the bone heals and the socket fills in.if this bump,is soft or movable or if you have pain then see the dentist and have the area checked. Are you wearing a denture now? This may need adjustment. Call you dentist if you are concerned. Read more...
Bump = ? What you are seeing and feeling may be a number of things from normal (such as bone exostosis) to minor issues to some things that are require treatment sooner rather than later. I advise you see the dentist who did the extraction (and the restorative dentist, if both are involved) to personally examine you, determine what's going on and advise you accordingly. This is part of routine aftercare. Read more...
What a shame. To loose so many teeth by age 25. "Lump" is not enough information for a forum such as this. Please return to your Dentist or Zoral Surgeon for reevaluation. Read more...

I have a piece of gum that is extended over my very back tooth I can get under it with my tongue and move it up and down and it hurts. Irritated!

See a dentist. If you have a wisdom tooth (18 year molar), under that gum, it may need to be removed as you are 21 years old. If the wisdom tooth has been removed, then you have overgrown gum tissue that can be easily removed by your dentist using a soft tissue dental laser. See your dentist soon to reduce the chance of infection. Read more...
Remove it. You need to have that coronal portion of the gum that goes over the top chewing surface of the tooth removed for better function and eliminate potential infections from foods and plaque accumulation under it. Read more...
Wisdom tooth. Try warm compresses. Wisdom teeth typically come out after age 17 ; can be stuck ; painful. You may need to have it taken out. See dentist to be sure. Read more...
Pericoronitis . Is an infection near wisdom tooth. Sometimes, there's not enough room for them, and they come in partially or not at all. This condition can lead to pericoronitis, inflammation of the tissue surrounding the tooth. Pericoronitis is diagnosed during a clinical exam by your dentist. Rec.: see your dentist for further investigation. Sometimes no treatment is the best treatment. Read more...
Pericoronitis. There is probably not enough room in your jaw for your wisdom tooth. An xray should tell if there is a possibility that it could continue to erupt fully without further complications. At your age, i would expect you will need to have the wisdom tooth extracted in order to fix the problem. Read more...

I have a red sore under my tongue, near my back tooth. It hurts to swallow and talk as well. There is also a white patch in my throat near it.?

You get them often? Aphateous ulcer or canker sore almost always starts as a red spot then white patchy or develops a tingling or burning sensation before any other symptoms are obvious. If you have a canker sore, your mouth will feel painful. Usually heals on its own within 10 to 14 days. To be sure see your doctor or dentist. Read more...
See your dentist. There are n=many things it could be but you need to see your dentist to rule out severe problems. Read more...

I have what seems to be a white head in my mouth right below my back tooth and it pops, is this an absest?

Yes, a Fistula. When a pulp within the tooth becomes infected it dissolves and the tooth acts like a thermometer. Every time you eat something hot, the infected material expands and is pushed out of the tooth into the surrounding bone. The body sends in white blood cells to fight the infection and when they die, they form pus. The body tries to get rid of it by forming a tract to the surface. See a dentist today! Read more...
Fistula. Sounds like you have an infection in the tooth and it is draining through a fistula. Please see a dentist to have it treated. Read more...
Abcess? Yes. A "white head" or "pimple" in the mouth on the gum tissue near your teeth is an indication that there is an infection that has tracked it's way out to drain. A lot of times this condition is not painful, as there is no swelling created within the underlying tissue. Go see you local dentist for an evaluation and its best to save the tooth rather than extract it. Read more...

My back tooth on my right side hurts when I bite into something hard or when I open my mouth too wide. What is wrong?

Dentist. Do not procrastinate. This should be checked before you get a serious infection and lose your tooth. Read more...
Possible problems. You may have a crack in the tooth, which upon bite force irritates the tooth nerve= pain. Or, you may have bitten down hard and temporarily compressed the tooth into the bone thereby pinching the tooth nerve as it enters the tooth= pain. Soft diet, no gum or chewy foods and see your dentist asap. Read more...