Zocdoc Answers

Medical questions & health advice by licensed doctors

"Small black dot on inside of cheek, plus swollen feeling - what is it?"

ZocdocAnswersSmall black dot on inside of cheek, plus swollen feeling - what is it?


In the past two days I have noticed a swollen and discomfortable feeling in the left side of my mouth and throat. It doesn't seem visibly swollen, but today I noticed a small black dot on the inside of my left cheek. The discomfort is now reaching to the inside of my left ear. Any idea what this could be? I don't recall biting myself at all, nor do I grind my teeth while sleeping.


I would suggest that you have this issue checked out by your primary care doctor, especially if the symptoms persist or worsen. They can examine for any signs of trauma, infection, or swelling in your mouth and throat and help you determine if any sort of treatment is needed. One possible explanation that comes to mind is that this black spot may represent a blood blister. Frequently, the lining of the inside of the cheek is subject to minor trauma, for example from accidentally biting the area with your teeth. Most of the time, when we do this we don't have any recollection of it, as it may occur when we are eating or when we are sleeping. Generally speaking, if the issue is minor trauma, then the pain and swelling will gradually improve over a few days and the blood blister collection will be eventually digested and cleared away by your body's normal healing mechanisms. Another less likely but more worrisome possibility is that the black spot is a melanoma, which is a pigmented form of skin cancer which can sometimes occur inside the mouth. Start by seeing your doctor at your earliest convenience, as they should be able to help figure this out for you.

Zocdoc Answers is for general informational purposes only and is not a substitute for professional medical advice. If you think you may have a medical emergency, call your doctor (in the United States) 911 immediately. Always seek the advice of your doctor before starting or changing treatment. Medical professionals who provide responses to health-related questions are intended third party beneficiaries with certain rights under Zocdoc’s Terms of Service.