My daughter was playing w/a friend & got a fingernail to her gums. It looks like a blood blister on gum line. Should I take to dentist?

In some cases. If she develops redness, pain or pus around where she was injured then she should see a doctor or dentist. If it is just a blood blister, then don't open it and it will heal on its own.
Not necessarily. She must have stopped Bleeding. The Mucosal lining is very delicate and there was a laceration and now that skin is stopping the bleeding. As long as she is not in severe pain and not continuously bleeding she will be fine and will heal. Give something cold toeat and drink like Popsicle and Ice Cream. She will be happy and the area will not be irritable.
Mouth rinse. Using antibacterial mouth rinse like Listerine several times per day should help. If it does not get better in a week you should take her to your dentist.

Related Questions

Last night I seen a blood blister at the back of my gums, not under or around a tooth just entirely on its own. I didn't realize or feel anything till I was done brushing my teeth, could this be from brushing or toxins of cigarettes?

BLOOD BLISTER GUMS. CANNOT TELL WITHOUT SEEING. CONSULT WITH A DERMATOLOGIST SOONEST. COULD BE A CANKER SORE. NOT FROM BRUSHING OR "TOXINS" Read more...
Blood blister. It could be from trauma, related to a tooth, a gum infection, or something else. It's impossible to say without a visual exam. Any sore in your mouth that does not heal within 7-10 days needs to be examined by your dentist. Read more...
Blood blister. Any red or white lesion should be examined if it persists for longer than 10 days-2 weeks. Of serious concern is the fact that you smoke, which exponentially raises your risk of oral cancer. Call your Dentist for an evaluation. Read more...

What does a blood blister on your gums mean?

Gingival Abcesses. A "blood blister" on the gum indicates that you have a dental infection that is typically related to a nearby tooth. Dental problems of this type should be examined by your dentist, who may need to perform root canal treatment. He might also refer you to an endodontist or periodontist for their evaluation or treatment. Continue to take all the penicillin medication that was prescribed. Read more...

Please tell me, could a blood blister appear on the upper gums?

Yes, it can. Could be an abscess from a tooth or gum problem. See a local dentist for a proper diagnosis and treatment. Read more...