### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I have a tiny canker on the left of my tongue no big deal, but then a couple days later I got this little single bump basically right in the middle of my tongue. Its about the size of I guess a pea, with a very hard to see whitish center. Could you please tell me what you think this might be? "b"Medical history as a quick update, Male, 41, 230, 511, Chronic back pain due to MVA & Fall, broke back 3 places. Drink 4-6 XL coffees a day, smoker cigs and periodical marijuana (being honest it helps bigtime with pain and better than Oxycontin type medication). Well i hope I told you enough... not that most of it was relevant to bump. ;)Thank you in advance for your assistance. Have a great day! Steve

### output:

Hello Steve. Thanks for consulting Chat Doctor.I have gone through your query and I understand your concern. According to your history given I have come up with following possibilities:1. Irritation due to smoking2. Enlarged papillae - If one or more of your taste buds becomes inflamed or irritated, it can swell and form a bump on your tongue.3. Fibroma4. Median rhomboid glossies - it's a yeast infection5. It can also be a sign of oral malignancy - if you have a lump on your tongue that doesn't go away within a week or two then you should consult a doctor for exact diagnosis. Although most lumps on the tongue are nothing to worry about I would advise you to watch for 1-2 weeks and if it doesn't go away you should visit a doctor. Hope this and your queryRegards