What's this in my mouth? Blood blister?

[RealLifeClanger]

This just suddenly appeared after eating crackers. Is it a blood blister and what do I do about it if it is? I tried to pop it but it just got bigger! Should I go to the dentist?
Phone playing up and didn't add photo. Will add below.

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I had one once - lasted around 1 hour then burst itself. Weird but harmless

Have you bitten your inner cheek at all?

I’ve had a few of these, usually after biting my cheek, only last a day or two.

Yes I've had those a few times, it'll go away probably quite quickly. Harmless.

Thank you all, it's very weird! I think I must have caught my cheek or something but didn't notice at the time. The thing just suddenly appeared out of nowhere.

My mum got these a lot and had to be careful what she ate, though yours looks like a one off. DH occasionally gets mouth ulcers from sharp food.

I get them all the time, I love them! Yes a blood blister. Pop with a pin. fGS don’t go to the dentist

Anyone who gets these all the time should consider they might be B12/C deficient. That's what caused it for me! Was also tested for diabetes. I got them regularly though and they were painful.

I get loads, I think I bite my cheeks at night.

Are you on any medications? Do you have any medical history ? Do you get these regularly ?

Do not pop with anything and if you are worried , if it doesn’t heal within two weeks , if you are on eg anti coagulant medicines or have symptoms elsewhere then go to see the dentist .

@MinnieCauldwell ah I bite my cheeks at night too. Even though I have a mouth guard I still manage to do it 🤦🏻‍♀️

It has already popped and now the area just feels a bit sensitive. It wasn't painful at all. Interestingly I found out recently that I am low on B12 and have only just started supplementing properly. Maybe something to do with that.

https://www.uhcw.nhs.uk/download/clientfiles/files/Patient%20Information%20Leaflets/Surgical%20Services/Oral%20and%20Maxillo%20Facial/Angina%20bullosa%20haemorrhagica%20(oral%20blood%20blister).pdf

I’ve had the above a couple of times but they usually burst before I know I’ve got them. The first time was frightening as my mouth was gushing blood. I was referred to a specialist but there wasn’t really any treatment.